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175 Sentences With "awns"

How to use awns in a sentence? Find typical usage patterns (collocations)/phrases/context for "awns" and check conjugation/comparative form for "awns". Mastering all the usages of "awns" from sentence examples published by news publications.

The awns, for example, allow water vapor to condense, collecting water droplets from the air.
The researchers found that the moss' leaves have tiny hairs, or awns, that are between 0.02 to 0.08 inches long.
These awns at the tip of each leaf can collect air from a variety of sources, from fog to heavy rain, using several specialized tools.
Most notably, S. caninervis grows in tight packs on the desert floor, creating a structure of leaves and awns that reduces splashing and absorbs the majority of rain drops, so that no water is wasted.
In grasses awns typically extend from the lemmas of the florets. This often makes the hairy appearance of the grass synfloresce. Awns may be long (several centimeters) or short, straight or curved, single or multiple per floret. Some genera are named after their awns, such as the three-awns (Aristida).
In some species, the awns can contribute significantly to photosynthesis, as, for example, in barley. The awns of wild emmer wheat spikelets effectively self-cultivate by propelling themselves mechanically into soils. During a period of increased humidity during the night, the awns of the spikelet become erect and draw together, and in the process push the grain into the soil. During the daytime the humidity drops and the awns slacken back again; however, fine silica hairs on the awns act as ratchet hooks in the soil and prevent the spikelets from reversing back out again.
Wild rye ear with awns Awns on the fruit of an Australian species of grass In botany, an awn is either a hair- or bristle-like appendage on a larger structure, or in the case of the Asteraceae, a stiff needle-like element of the pappus. Awns are characteristic of various plant families, including Geraniaceae and many grasses (Poaceae).
Wild emmer wheat spikelets effectively self-cultivate by propelling themselves mechanically into soils with their awns. During a period of increased humidity during the night, the awns of the spikelet become erect and draw together, and in the process push the grain into the soil. During the daytime, the humidity drops and the awns slacken back again; however, fine silica hairs on the awns act as hooks in the soil and prevent the spikelets from backing out. During the course of alternating stages of daytime drying and nighttime humidity, the awns' pumping movements, which resemble a swimming frog kick, will drill the spikelet or more into the soil.
The spikelets are flattened and have short awns at the tips of the fruits.
Only the central spikelet has one creamy coloured seed while each segment has seven awns with upward pointing barbs. These awns are up to long and become easily attached to animals, clothing, machinery, etc. Leaf blades are slender and a greyish-green colour.
Moreover, sharp awns of ripe seeds can penetrate sheep's skin into the flesh causing pain and lowering carcass value. If ingested, the strong awns can cause injury to sheep's mouth and even intestine,Edgar E. & Connor H.E. 2000. Flora of New Zealand, Vol. V, Grasses.
The awns may be quite long; in A. purpurea var. longiseta they may be up to 10 cm.
The glabrous glumes at the base of the spikelets gradually taper to a point, averaging from in length. The glumes have a single vein and are unequal in length. The lemma, excluding the awns, is approximately long. The delicate lateral awns are in length and can be erect or spreading.
The glumes are smooth or occasionally slightly scabrous. The lower glume is fie to seven-veined and long, and the upper glume is seven to nine- veined and long. The lemmas are scabrous or nearly glabrous and lack awns or possess very short awns in length. The lemmas are long.
The inflorescence is a plumelike panicle up to 15 centimeters long containing many V-shaped spikelets with long awns.
After flowering, the five pericarps on the fruits of Erodium, and the awns, which are hair like appendages of pericarps, joined together and grow into a spine shape. As the fruits dry, dehydration create tension, and elastic energy develops within the awns. The shape of the awns change from straight to helical, causing them to explosively separate the seeds away from the maternal plants. During dispersal, mechanical energy stored in specialized tissues is transferred to the seeds to increase their kinetic and potential energy.
Aldama is characterized by having a perennial herbaceous habit, a pappus usually of awns and scales, and a multiseriate involucre.
The drooping inflorescence has narrow spikelets with awns up to 15 millimeters long which are often, but not always, crinkled.
During the course of alternating stages of daytime and nighttime humidity, the awns' pumping movements, which resemble a swimming frog kick, drill the spikelet as much as an inch into the soil. Geranium dissectum fruits, one undischarged, two of which have discharged their seed- bearing carpels by flinging out the seed as the awns dry, shrink, and split off elastically. Awns on the carpels of Erodium moschatum, that twist as they dry. They might either fling off their seed, or entangle in the coats of animals, or partly bury the seed if they land suitably on the soil When awns occur in the Geraniaceae, they form the distal (rostral) points of the five carpels, lying parallel in the style above the ovary.
The awn of each seed, once on the ground, responds to humidity of the environment and changes its shape accordingly. The awn coils under dehydration and uncoils when wet. This results in motor action of the seed, which, combined with hairs on the seed and along the length of the awns, moves the seed across the surface, eventually positioning them into a crevice and creating a drilling action that forces the seed into the ground. The coil and uncoil of the awns are achieved by the hygroscopic tissue in the active layer on the awns.
Some species have self-pollinating inflorescences hidden in their basal leaf sheaths. These hidden inflorescences lack glumes and usually lack awns.
Some spikelets have one or three awns, and some have none.Aegilops. The Jepson eFlora 2013.Aegilops. Triticeae Genus Fact Sheets. Intermountain Herbarium.
The culms are tall. The panicles are up to long. The typically glabrous lemmas are long. The awns are straight and erect.
The spikelets have awns up to 3 centimeters long. Spikelets low on the inflorescence often stay wrapped in sheaths and do not bloom.
Hygroscopic movement happens with respond to a change in the water content of dead plant tissue, specially in the cell wall. Water absorbed by the cell wall binds to the matrix of the awns, causing it to expand and to drive the cellulose microfibrils apart, which causes the matrix to uncoil, thus straightening the awns. Inversely, the matrix will contract under dehydration, leading to the coil of the awns. Erodium Cicutarium seed uncoiling as it absorbs moisture (real-time) Erodium cicutarium seed drills itself into the soil (time-lapse) Research found no correlation between weight of the awned fruits and the dispersal distance.
Melica harfordii is a perennial bunchgrass growing up to in maximum height. The inflorescence is a narrow series of spikelets tipped with nearly invisible awns.
Sepals are green, up to 7 mm (0.3 inches) long, tipped with awns. Petals are white, slightly long than the sepals.Small, John Kunkel. 1907. Geraniaceae.
Aristida stems are ascending to erect, with both basal and cauline leaves. The leaves may be flat or inrolled, and the basal leaves may be tufted. The inflorescences may be either panicle-like or raceme-like, with spiky branches. The glumes of a spikelet are narrow lanceolate, usually without any awns, while the lemmas are hard, three-veined, and have the three awns near the tip.
The inflorescence is a cluster of flowers, each flower surrounded by six hairy bracts which are grayish to pink in color and tipped with awns. One bract is longer than the others and has a straight awn, and the other smaller bracts may have hooked awns. The tiny flower at the center of the bract array is a few millimeters wide and white and yellow in color.
The inflorescence is a spike up to about 12 cm long made up of spikelets up to about 3 cm long each, usually tipped with awns.
The flower head is long, the plant flowering in July and August. Its awns are straight and long, projecting out of the end of the spikelets.
The inflorescence is a dense, narrow, cylindrical tuft no longer than 5 centimeters in length, made up of small spikelets with hairlike tips and bent awns.
The palea (bract like organs found within species of grass) tends to be long and blackish, in which the upper part consists of bent and twisted awns.
Below the florets are two glumes, one long and the other long. The fertile floret has a lemma (bract) long, with three short awns (bristles) at the tip, and the sterile floret has a lemma about long with three awns about long. If pollinated, the fertile floret produces an oblong-elliptic brown seed long. When the seed is mature, the whole spikelet detaches, except for the two glumes, which remain.
The inflorescence is a cluster of flowers surrounded by five hairy greenish bracts tipped with hooked awns. The flower is about 2 millimeters wide and yellow in color.
The sparse inflorescence is a wide, flat, open array of spikelets that break apart easily. The grain has a twisted tip and three awns up to 2 centimeters long.
Along the top edge of the tube are three narrow bracts tipped in hooked awns. The flower itself is only about 2 millimeters long, hairy, and white in color.
They are generally hairy and linear in shape, and not more than 3 centimeters long. The stems branch into wide inflorescences bearing pointed bracts and flowers with spiky awns.
The thready leaves are no more than 5 centimeters long. The inflorescence bears widely spaced spikelets which are reddish purple in color. Each has three awns at the tip.
It is similar to Elymus hystrix, with which it sometimes hybridizes. It can be distinguished from Elymus hystrix by its curving lemma awns, generally larger glumes, and nodding spikes.
1938 Sir George Grey Special Collections, Auckland Libraries, AWNS-19381005-49-18 Andrew Sinclair Sutherland (13 September 1882 – 2 May 1961) was a New Zealand politician of the National Party.
Both are typified by many grass species. Some of these grasses include blue and black grama, big galleta, Indian ricegrass and three-awns. The wettest areas support sedges and forbs.
The barbs on the awns help the seed drive into the soil.US Forest Service Fire Ecology The grainlike seed may remain viable in the soil for a number of years.
The lower glumes are and the upper glumes are . The elliptical or lanceolate lemmas are membranous and become scabrous towards their apex. The lemmas are long. The terminal awns are long.
The leaves are mostly basal. Each is up to 30 centimeters long and tapers to a threadlike tip. The spikelets have awns reaching nearly 4 centimeters long, each bent twice.Nassella viridula.
Barbed goatgrass grows to be about 8 to 16 inches tall with few to many rigid, loosely erect aerial stems (culms). In late spring the plant produces rigid flower spikes consisting of three to six spikelets bearing long, stiff awns which assist in seed distribution. When the grass matures, the spikelets fall off in their entirety to germinate on the ground, and the long awns which give the plant its name assist in dispersal by animals, wind or water.
The inflorescence is composed of two or three flowers emerging from the leaf axils. Each flower has pointed sepals tipped with awns. The flower has a purplish tube and a pinkish corolla.
The spikelets are flattened and have awns each up to a centimeter long at the tips of the fruits. This grass is considered a good forage for livestock and wild grazing animals.
The culms are long. The panicles are long and often consist of a single spikelet. The pubescent or glabrous lemmas are long, with bluntly angled margins. The awns can become divaricate when mature.
The inflorescence is an open, spreading array of thin branches bearing small spikelets which have awns up to 3 centimeters long. Spikelets lower in the inflorescence stay within sheaths and do not bloom.
The membranaceous, oblong to lanceolate lemmas are long, with slender, flexuous awns long. Paleas have inflexed sides that meet in the middle, measuring long. Lodicules are toothed and lack trichomes. Anthers are long.
There are several varieties with overlapping geographical ranges. This is not considered to be a good graze for livestock because the awns are sharp and the protein content of the grass is low.
Aristida behriana is a native Australian species of grass commonly known as bunch wire grass or brush wire grass. It is a bright green perennial plant forming short, tufted tussocks up to Noted as less than 30cm by Bagust (2005) but up to 40cm by New South Wales Flora Online high. Its seeds have three long, radiating awns; it is a member of genus Aristida, grasses known commonly as three-awns. The species favours low fertility and well-drained soils.
The head contains 27 to 38 yellow ray florets and many yellow disc florets. The fruit is a cypsela which can be almost long and is tipped with a pappus of two short awns.
The inflorescence is a dense cluster of flowers, each flower surrounded by six white to pink hairy bracts tipped in hooked awns. The flower itself is only a few millimeters wide with jagged tepals.
The inflorescence is a dense cluster of flowers, each flower surrounded by hairy, bristly white bracts tipped with hooked awns. The flower is 4 or 5 millimeters long and white to pink in color.
The inflorescence is a dense cluster of flowers, each flower surrounded by six hairy bracts with hooked awns at the tips. The flower is white to red and only 2 or 3 millimeters wide.
The scabrid awns are somewhat erect. The subspecies grows as a weed in cultivated areas, typically in dry soils but rarely in wetlands. Bromus hordeaceus subsp. pseudothominii occurs in Europe and sporadically throughout North America.
The lemmas have hyaline margins broad. The apex is bifid and the cleft is deep. The awns are long, arising below the lemma. The paleas are shorter than the lemmas, with glabrous backs and ciliate keels.
Bromus hordeaceus subsp. ferronii, the least soft brome, is a rare annual that occurs in northwestern Europe. The grass is tufted and erect or decumbent. The spikelets are villous and the awns are spreading or twisted.
The awns may be up to 2.5 centimeters in length. This plant may be grazed when young but as it ages it becomes low in quality and even dangerous for livestock because of the sharp spikelets.
While the roots of a wheat plant are growing, the plant also accumulates an energy store in its stem, in the form of fructans, which helps the plant to yield under drought and disease pressure, but it has been observed that there is a trade-off between root growth and stem non- structural carbohydrate reserves. Root growth is likely to be prioritised in drought-adapted crops, while stem non-structural carbohydrate is prioritised in varieties developed for countries where disease is a bigger issue. Depending on variety, wheat may be awned or not awned. Producing awns incurs a cost in grain number, but wheat awns photosynthesise more water-use- efficiently than their leaves, so awns are much more frequent in varieties of wheat grown in hot drought-prone countries than those generally seen in temperate countries.
Plants with white, blue or pink flowers may also be found. The botanical name Calytrix refers to the awns or fine hairs found on the calyx of the flowers. Plants are pollinated by both birds and insects.
Stubbendieck, J.L., et al. (2004). North American Wildland Plants: A Field Guide. University of Nebraska Press. As the awns dry, they twist and spread in all directions, similar to the snake-covered head of the mythological Medusa.
The branches within these inflorescences are very thin and thus can create effects of spikelets that appear to be floating in mid air. It also consists of awns, which are hairlike projections containing multicellular organisms that obtain nutrients through photosynthesis. The awns can twist and un-twist in circumstances depending on the humidity and temperature of the area, which is required for them in order to thrive within soil. They also protrude from individual flowers in the flowering clusters, which tend to develop between late spring and early summer (normally April - June).
The blades are flat or folded, hairless, and light green to yellowish. The panicle-shaped inflorescence is narrow, with branches appressed to ascending. The spikelets have one flower each. The awns may be up to 3 centimeters long.
Aristida californica is a clumpy, hairy grass forming bushy tufts up to about 40 centimeters tall in its sandy habitat. The inflorescence contains hard spikelets with a long beak at the tip and awns up to 4.5 centimeters long.
The awns are straight or curved and are long. The palea is as long or longer than the lemma and its tip slightly projects at maturity. The anthers are long. The caryopses are thick and strongly inrolled when mature.
The erect panicle has ascending spikelets long. The first glume is long; the second glume is long. The typically pubescent lemmas are long, and the awns are two to four times as long. The grass flowers from May to June.
This annual bunchgrass is quite variable in appearance, its size and shape determined largely by environmental conditions. It grows in a tuft to heights between 5 and 80 centimeters. It forms a narrow inflorescence of spikelets, each fruit with three awns.
The inflorescence atop the wiry stem is a panicle of hairy spikelets with bent awns up to 3.5 centimetres long. The grass can grow in a variety of habitat types, in dry conditions, heavy, rocky, eroded soils, and disturbed areas.
The inflorescence is a rounded or oval cluster or series of clusters of spikelets. The fertile spikelet has an awn up to a centimeter long. The awns clumped closely together into a tuft gives the inflorescence its bristly, hairy appearance.
The awns are about the same length, long, and curve slightly. The anthers are long. The caryopses are as long as . The grass emerges in early winter and remains dormant until spring when heavy rainfall and higher temperatures stimulate growth.
The spikelets are loosely flowered with three to eight flowers on each spikelet. The glumes are either pilose or glabrous. The five to seven nerved lemmas are long and are mostly glabrous though sericeous towards their base. The awns are long.
Glumes are pubescent, with hairs up to long. The one- nerved lower glumes are long, and the three-nerved upper glumes are long. The seven-nerved lemmas are long and wide, and are covered with appressed hairs up to long. Awns are long.
The lemmas themselves are long and wide. The twisted and strongly divergent awns are long. The small anthers are approximately long and have notches at their ends. The caryopses are just as long as the paleas, and are flat or slightly rolled inwards.
It is a perennial grass producing stems up to a meter tall. The inflorescence is a panicle up to 15 or 16 centimeters long and several centimeters wide. It is fluffy in appearance and sometimes purplish in color due to the long, dark-colored awns.
The five to eleven flowered spikelets are long and wide. Both glumes have short, adpressed hairs. The lower glume is three-nerved and the upper glume is five-nerved. The densely hairy lemmas are oblong to elliptical in shape, and have straight awns long.
Pineland three-awn (A. stricta) flowers Aristida is a very nearly cosmopolitan genus of plants in the grass family.Linnaeus, Carl von. 1753. Species Plantarum 1: 82 in LatinTropicos, Aristida L Aristida is distinguished by having three awns (bristles) on each lemma of each floret.
Bromus rigidus is an annual grass growing tall. The culms, leaves, and panicle branches are all pubescent or harsh. The erect or ascending panicle has short branches that terminate in four to nine flowered spikelets. The reddish spikelets are long, including the awns measuring long.
The glumes are acute, with the lower glumes one-nerved and long, and the upper glumes three- nerved and long. The glabrous or slightly scabrous lemmas are prominently nerved and long, with awns long. The anthers are long. B. erectus flowers in June and July.
The spikelets are long while the rhachilla is prolonged. The glumes are scaberulous and lanceolate while the lemma is only a half of its length. Its awns are and are located closer to the lemmas middle. The large inflorescence is a rich brown colour.
The inflorescence is a panicle up to long by 1 centimeter wide. The spikelets may be over long. The awns are up to long. This is a very drought-tolerant grass that can be found in dry areas, such as sunny grasslands and savannas.
This fescue grows in thin bunches with erect stems reaching up to one meter in height. The leaves are somewhat hairy and 10 to 40 centimeters long. The drooping inflorescence holds spikelets which are each about a centimeter long and have light-colored, hairlike awns.
The coriaceous glumes are lance- subulate and become scabrous at their distal end. The lower glumes measure and have one vein, and the upper glumes measure and have three veins. The coriaceous lemmas are strongly curved, the longer of which measure long. The awns measure .
Spikelets within the inflorescence (flower cluster) are generally arranged on spicate racemes in pairs. A fertile, unstalked spikelet is subtended by a sterile, stalked spikelet. In species where awns are present they are found on the fertile, unstalked spikelet as an extension of the lemma.
The genus includes about 300 species found worldwide, often in arid warm regions. This genus is among those colloquially called three-awns wiregrasses, speargrasses and needlegrasses.Flora of China Vol. 22 Page 453 三芒草属 san mang cao shu Aristida Linnaeus, Sp. Pl. 1: 82. 1753.
The obtuse and firm, almost leathery lemmas are long and wide, with nine inconspicuous nerves. The margins of the lemmas roll slightly inwards at maturity, and the twisted and strongly divergent awns are long. The palea is distinctly shorter that its glume. The anthers are long.
Enneapogon desvauxi grows erect stems 10 to 40 centimeters tall. It has a few hairy, thready leaves and fluffy gray inflorescences. Each spike is 3 to 6 centimeters long and contains fertile florets which form the fruit grain, each with nine spreading awns with white hairs.
Marattia in the strict sense is found in the neotropics and Hawaii. The genus Eupodium is also neotropical, with three species. It has fronds that are 2-5 times pinnate, distinctive stalked synangia, and awns on distal blade segments. Blade division decreases towards the apex of the frond.
The grey-green to purple panicles are long and wide. The panicles can be dense or reduced to just one spikelet. The erect to ascending or lax branches of the panicle are scabrous or pubescent, each branch bearing one spikelet. The ovate-lanceolate spikelets are , including the awns long.
This is an annual forming clumps of branching gray-green and purple-tinted stems about 30 to 70 centimeters tall. The inflorescence is an open array of spikelets. The grain has three spreading awns, the central one reaching up to 7 centimeters long and the other two slightly shorter.
Diplopogon is a genus of Australian plants in the grass family. It was first described in 1810 by Robert Brown. it contains only a singles species, Diplopogon setaceus, found in southwestern Australia. It is similar to the genus Amphipogon, the only difference being the awns of the lemma.
Elymus multisetus is native to the western United States where it grows in many types of habitat. It is a perennial grass reaching 60 centimeters in maximum height. The inflorescence is an array of spikelets each with several long, hairlike awns which may be up to 20 centimeters long.
The species flowering stalk is located above the leaves with the sticky purple colored awns. Flowers appear from December to June. It grows high and has some hairs which have 10-15 nerves on either side. The plant is whitish on the lower surface and is very narrow near midrib.
It is yellow-green and hairy, with a few basal leaves up to about 2 centimeters long. The inflorescence contains several flowers, each surrounded by a tube of six hairy bracts with straight or hooked awns. The flower is a few millimeters wide with white or pink deeply notched tepals.
This plant is erect in form, reaching up to about 30 centimeters tall. The inflorescence is a cluster of flowers with each flower surrounded by six reddish or gray bracts, each tipped with a straight awn. The awns are bright red when new and age ivory white.Reveal, J. L. C. valida.
There are usually 1–2 cluster of flowers within the inflorescence. The calyx is long and the upper lip is unlobed but has 2 (sometimes 3) awns. The lower lip is about twice the size of the upper lip. The flower color can be pale blue to blue and purple tipped.
Medusahead ranges in height from 20 to 60 centimeters.Jepson Manual Treatment It has slender, weak stems that often branch at the base. It has spike inflorescences similar to those of wheat or rye. The lemmas have long awns and the glumes have shorter ones, giving the seed head a layered look.
It has lanceolate shaped glumes that are in length with the upper portion being obtuse and the lower part acute to acuminate. The linear to elliptic lemma is purple or brown in colour with even darker margins and in length. The divergent flattened awns have a length of up to .
The species carry three to 4 (sometimes even 5) florets which are located on long spikelets. The glumes are both ovate and are (sometimes ) long. Its rachilla is long while the lemmas are and are smooth. It palea have smooth keels while the awns are long (exceeding sometimes up to ).
Phytologia 83 (1): 312-330. The determining characteristic between the two is the presence of divergent awns, or hair-like projections that extend off a larger structure, such as the lemma or floret. These two subspecies have been known to hybridize.Daubenmire RF (1939) The taxonomy and ecology of Agopyron spicatum and A. inerme.
The herbage is red to gray-green in color and hairy in texture. The inflorescence is a cluster of flowers surrounded by six bracts, each tipped with hooked awns except the longest, which may have a straight awn. The flower itself is 4 or 5 millimeters wide and white to pinkish in color.
USDA NRCS Plant Guide. This is a rhizomatous perennial grass with stems up to 1.35 m tall. The spikes are up to half a metre long with spikelets up to 2.7 cm in length. This species can be distinguished from its relative, E. repens, by its smaller rhizomes, longer leaves, and shorter awns.
This sedge produces clumps of triangular stems up to 100 or 120 centimeters tall from short rhizomes. The inflorescence is up to 35 centimeters long and has a long bract which is longer than the spikes. It is a cluster of several cylindrical spikes. The scales over the fruits taper into long, thin awns.
Festuca contracta is an erect, stiff-tufted, dense, blue-green grass that grows to 80–400 mm in height. It has ridged culms and a contracted panicle 30–120 mm in length. The spikelets are about 12 mm long, including the awns. The glumes have a strong mid-nerve, and are scabrous near the tip.
The awns of lower glumes are purple, are in length and are 3-5 veined. The lower lemma is herbaceous and have 5-9 veins while the upper one is 5 veined with an awn that is . The species apex have a stout that is long. Flowers and fruits grow from July to November.
It can be confused with Canadian wild rye which is a more robust plant with longer awns. It should be cut early in the season when used for hay to avoid ergot contamination. Northern Missouri Germplasm Virginia wild rye was released in 1999 by the Missouri Plant Material Center for use in northern Missouri.
Anthoxanthum odaoratum grass grows in tufts with stems tall, and short, broad green leaves wide, which are slightly hairy. It flowers from April until June, i.e. quite early in the season, with flower spikes of long and crowded spikelets of , oblong shaped, which can be quite dark when young. The lower lemmas have projecting awns.
The often purplish spikelets have three to eleven flowers and are long. The lower glume is one to three-nerved and long, and the upper glume is five or seven-nerved and long. The shortly hairy lemmas are long and have straight awns long. The palea is densely hairy and has a flat tip.
Bluebunch wheatgrass can often be distinguished from other bunchgrasses by the awns on its seedheads which stand out at an angle nearly 90 degrees from the stem. It is often bluish. The roots of the grass have a waxy layer that helps it resist desiccation in dry soils. In areas with more moisture the grass may produce rhizomes.
The anthers are forked somewhat like a snake's tongue, with two awns at the tip. The fruit is red and across. It looks like a berry, but is actually a dry capsule surrounded by fleshy calyx. The plant is a calcifuge, favoring acidic soil, in pine or hardwood forests, although it generally produces fruit only in sunnier areas.
Leaf blades are long and 3 mm wide; they are stiff, leathery, and convolute. The inflorescence is a panicle in which each spikelet contains one fertile flower. Spikelets are lanceolate and 8.5 mm long. Upper and lower glumes have 1–2 mm long awns, and lateral lemmas have a 13–14 mm long awn, which is three-branched.
The inflorescence is an open or dense cluster of flowers, with each flower surrounded by green, gray, or pink bracts. There are generally five bracts per flower, with one bract much longer than the others. The bracts are tipped with straight awns. The flower at the center is only about 3 millimeters wide and usually white in color.
It is hairy and gray, green, or reddish in color. The inflorescence is a cluster of flowers, with each flower surrounded by an array of six hairy bracts. One bract is much longer than the others and has a long, straight awn; the other bracts have hooked awns. The flower is 2 or 3 millimeters long and usually white.
Sartidia perrieri is a tuft-forming grass. The known individual is roughly high, with long leaf blades. Inflorescence is a dense, long panicle and the species has long awns extending from the lemmas in the spikelets. With its clusters of large spikelets, it is very different from the only other known Sartidia species from Madagascar, S. isaloensis.
Northern forms have pink to light purple colouring on the outer petals and a contrasting yellow centre, while all- yellow forms are found in the south. The petals are wider than many other Calytrix species. As with most species in the genus, the calyx lobes have prominent awns that extend well-beyond the extent of the petals.
Foxtail barley is a prolific seed producer, with each plant capable of producing upwards of 200 seeds. Seeds are elliptical, yellowish- brown and about a long with four to eight awns. The seeds have sharp, backwards pointing barbs. Seed is dispersed by wind, machinery and animals and germinates in the cooler temperatures of the spring or fall.
Manually engaged disawning plates are usually fitted to the concave. These provide extra friction to remove the awns from barley crops. After the primary separation at the cylinder, the clean grain falls through the concave and to the shoe, which contains the chaffer and sieves. The shoe is common to both conventional combines and rotary combines.
The lemmas typically have five (rarely six or seven) veins. The lemmas have acute to attenuate apices that are occasionally doubly pointed, and terminal awns or mucros. The bidentate paleas are shorter to longer than the lemmas, with scabrous-ciliate veins. The regions between the veins are smooth and glabrous near the base of the paleas and become scabrous or puberulent distally.
There are one to three short, thin leaves around the base of the plant. The inflorescence is a single spherical or bunched spike of up to 30 spikelets. Each spikelet is flat and has excurved awns, meaning the tip of each of the two to eight flowers on the spikelet curls outward. The spikelets are bright green to yellowish or brown.
The inflorescence is a cluster of flowers, each surrounded by a starlike array of six spreading white bracts tipped with straight brown awns. The flower itself is a few millimeters wide and white to pale pink in color.Goodman, George Jones. 1934. Annals of the Missouri Botanical Garden 21(1): 44–45 descriptions in English and Latin, commentary in EnglishGoodman, George Jones. 1934.
Lemma itself have a dentate apex with the main lemma having awns which are over the lemma and are sized . The species also have glumes which are lanceolate, membranous, and have acuminate apexes with the upper glume being of the same size as a spikelet. Rhachilla is long and pilose. Flowers have two lodicules and two stigmas along with and three stamens.
Stipa parishii is a perennial bunch grass which forms tight tufts of erect stems up to about 80 centimeters tall. The inflorescence is up to 15 centimeters long and packed with densely hairy spikelets. Each spikelet has an awn up to about 3.5 centimeters long. It has a single kink in it, whereas the awns of many other Stipa species have two kinks.
Leaves are ovate or subcordate, up to 30 cm (1.2 inches) long. Flowers are yellow, solitary, forming in the axils of the leaves. Fruit is spherical, about 3 mm in diameter. The species is closely related to S. cordata, differing by having fewer hairs along the stems, roots forming at the nodes, a glabrous filament tube, and 2 awns on the mericarp.
The Mindanao mountain rat has a head-and-body length of and a tail length of , and weighs . The fur is short and somewhat coarse with flattened awns. The upper parts of this rat are yellowish-brown and the underparts are plain white, with no brown on the chest. The pinnae and the hind feet are smaller than those of L. bryophilus.
The species is long with leaf-blades being slightly lanceolate, ovate, and are long and wide. Its inflorescence is long and is made out of 5-11 cuneate fascicles which are in length and carry 2-6 spikelets. Spikelets are lanceolate just like leaf-blades, and are in length. They are also glabrous and pubescent and have glumes which have smooth viscid awns which are long.
The inflorescence atop the stem is punctuated by nodes at which the bracts are fused to form a cup or band up to about 2.5 centimeters wide. At the end of each branching of the stem is a similar cup of bracts partially fused around a cluster of flowers. The bracts are tipped in spinelike awns. The flowers are white to yellow-green and hairy in texture.
The leaves are basal, oval in shape and up to about 3 centimeters long. The herbage is fuzzy to quite hairy in texture, and generally reddish in color. The inflorescence is a loose cluster of flowers, each surrounded by six reddish bracts coated in curly hairs and tipped in hooked awns. The flower itself is up to 6 millimeters wide, pink or red in color and hairy.
The stems are smooth (glabrous) and slender. The leaves are hairy (pubescent) and have sheaths that are separate except at the node where the leaf attaches to the stem. It typically reaches tall, though plants as small as may produce seed. The flowers of B. tectorum are arranged on a drooping panicle with approximately 30 spikelets with awns and five to eight flowers each.
The fruits have high valves and no awns with a maximum of eight locules. This species resembles its close relative Glottiphyllum nelii which overlaps it in range, but mostly grows to the north in the Great Karoo. However G.nelii has shiny leaves, without any pale, waxy covering, and often has translucent lines along its leaf margins. G.nelii also has fewer branches and fewer leaves per branch.
The leaves are decussate (produced in alternate, perpendicular pairs) slender, erect and tapering gradually to a point. They are covered in a fine, pale waxy covering that gives the leaves a slight grey colour. The seed capsule is held close to the plant, has valves with awns, and even after it has dried out and released its seeds, it remains persistent on the plant, for many years.
It fertile spikelets are lanceolate and are . They carry one fertile floret which have a hairy floret callus which is over lemma. Fertile lemma is oblong and is of the same size as a spikelet, membranous and keelless. Lemma itself have an asperulous surface and dentate apex with the main lemma having awns which are over the lemma and are geniculated and are long.
Uredinia are linear, light orange, and occur mostly on the leaf blades but occasionally occur also on leaf sheaths, peduncles and awns. Extensive chlorosis is often associated with the uredinia. Telia are mostly linear, black to dark brown, and are covered by the host epidermis. Although infection by crown rust does not usually kill whole plants, it does kill individual leaves of the plants.
The upper stems may have a few main branches that divide into smaller branches bearing panicles. There are primary panicles, which may be chasmogamous, and secondary panicles, which are often cleistogamous. The spikelets are roughly 1 to 5 millimeters long and lack awns. In the Chicago area, Dichanthelium is considered the most emblematic genus of the Gulf and Atlantic coastal plain disjunct habitat found in that region.
The large flowers are in diameter and have several awns or fine hairs which extend from the calyx lobes beyond the petals. Found among woodlands and heath on sandplains in the Mid West and the northern Wheatbelt regions of Western Australia where it grows on sandy gravelly soils. It is named for James Drummond who was a noted naturalist and botanical collector in Western Australia.
The underived word bære survives in the north of Scotland as bere, and refers to a specific strain of six-row barley grown there. The word barn, which originally meant "barley- house", is also rooted in these words. The Latin word ', used as barley's scientific genus name, is derived from an Indo-European root meaning "bristly" after the long prickly awns of the ear of grain.
Calytrix gypsophila, commonly known as the gypsum fringle-myrtle, is a species of plant in the myrtle family Myrtaceae that is endemic to Western Australia. The shrub typically grows to a height of . It usually blooms between February to September producing white flowers. Later it will produce a long cylindrical fruit approximately long and wide, with fan-shaped wings and awns at one end.
Depending on the species, such awns have various seed dispersal functions, either dispersing the seed by flinging it out (seed ejection); flinging away the entire carpel so that it snaps off (carpel projection);Yeo, P. F. (1984). "Fruit-discharge- type in Geranium (Geraniaceae): its use in classification and its evolutionary implications". Botanical Journal of the Linnean Society 89: 1–36. doi: 10.1111/j.1095-8339.1984.tb00998.
Bromus alopecuros is a species of brome grass known by the common name weedy brome. It is native to the Mediterranean Basin, and it is known in other places, including Australia, South Africa, and California, as an introduced species and sometimes a weed. It is an annual grass producing stems up to 83 centimeters tall. The inflorescence is a dense packet of spikelets with tangling, curved awns.
The bracts are tipped with hooked awns. The flower itself is just a few millimeters long, white to pink, and quite hairy. There are sometimes small inflorescences located in the cauline leaf axils along the stem. Chorizanthe membranacea is easily distinguished from other spineflowers by its relative abundance of leaves, its height and upright habit, and the fusion of the bracts of the involucre into a continuous body.
Chorizanthe xanti is generally erect in form, reaching up to about 30 centimeters in height, and reddish in color and coated in thin to dense hairs. The inflorescence is a loose cluster of flowers, each flower surrounded by six reddish, curly-haired bracts tipped with hooked awns. The flower is up to 6 millimeters wide and pink to red in color. There are two varieties of this species.
Panicles also exist within this species where it rises above the plant's rolled and thread-like leaves. It contains slender open branches, a few narrow scales and spikelets that consist of one flower. The ripened flowering heads within the spikelet remain on the grass usually until autumn, in which the awns tend to bend and twist, spreading widely from the scales. The seeds are formed as sharp needles.
It has long leaves, approximately 10–15 cm long with a distinctive blunt tip and flattened leaf sheath at the base. It is light green in colour with a prominent central vein. The plant gets its common name from its large windmill-shaped flowering heads, which can be around 30 cm across. Each of the long black spikes is lined with black seeds which have two awns each.
Bromus arizonicus is a species of brome grass known by the common name Arizona brome. It is native to the Southwestern United States, California, and Baja California, where it grows in many types of grassy valley and desert habitat. It is an annual grass growing 40 to 90 centimeters tall with an open, branching inflorescence. The spikelets are flat and hairy and have awns up to 1.5 centimeters long.
Scleropogon is a monotypic genus of grass which includes the sole species Scleropogon brevifolius, or burrograss. This grass is found in two areas of the world, in North America from the southwestern United States to central Mexico and in South America in Chile and Argentina. This is a perennial mat- forming grass with sharp, tufted leaves and firm awns. This grass may be dioecious, with staminate and pistillate plants growing in separate colonies.
Scald is a foliar disease of barley affecting the leaves and sheaths of the plant; however, lesions may also occur on coleoptiles, glumes, floral bracts and awns. Initial symptoms are oval, water-soaked, grayish-green spots, 1.0-1.5 cm long. As the disease develops, the centers of the lesions dry and bleach, becoming light gray, tan, or white with a dark brown margin. The lesions are not delimited by the leaf veins and often coalesce.
Australian Journal of Agricultural Research 57(2) 213–219 doi:10.1071/AR05200 Bromus sterilis, or sterile brome, is similar in most morphological features. It is a slightly smaller plant which can be an annual or a biennial plant. Bromus hordeaceus, known as soft brome, is similar in early growth stages with smaller leaf blades. The seed head is an erect panicle, smaller than B. diandrus with much smaller seeds and much shorter awns.
Stamens have anthers with extended tube-like structures called "awns" through which pollen falls when mature. Inflorescences can be axillary or terminal. The fruit develops from an inferior ovary, and is a four- or five-parted berry; it is usually brightly coloured, often being red or bluish with purple juice. Roots are commonly mycorrhizal, which likely help the plants to access nutrients such as nitrogen and phosphorus in the acidic, nutrient-poor soils they inhabit.
Oryza barthii, also called Barth's rice, wild rice, or African wild rice, is a grass in the rice genus Oryza. It is an annual, erect to semierect grass. It has leaves with a short ligule (<13 mm), and panicles that are compact to open, rarely having secondary branching. The inflorescence structure are large spikelets, 7.7-12.3 mm long and 2.3-3.5 mm wide, with strong awns (up to 20 cm long), usually red.
It is a hairy, sticky annual. The stems bear bright pink flowers, which often have dark spots on the bases. The flowers are arranged in a loose cluster and have ten filaments – five of which are fertile – and five styles. The leaves are pinnate to pinnate-pinnatifid, and the long seed-pod, shaped like the bill of a stork, bursts open in a spiral when ripe, sending the seeds (which have long tail called awns) into the air.
It is an erect herb producing a hairy stem up to about half a meter in maximum height. The leaves are up to 4 centimeters long and mainly arranged about the base of the plant, with a whorl of leaves at the middle of the stem as well. The inflorescence is a cluster of flowers, each surrounded by six purple to bright pink bracts which may be all fused together. The bracts are tipped in straight awns.
All foxtails have a hardened tip, sometimes called a "callus", and retrorse barbs, pointing away from the tip of the callus. Wild barleys have clusters of three spikelets, and the callus is the portion of the rachis to which they attach. In other grasses, such as needlegrass and brome grasses, the foxtail consists of a single spikelet, with the callus being the hardened lemma tip. Retrorse barbs can be found on the callus, the lemmas, and the awns.
Flowers of Oplismenus undulatifolius are typically very light in color compared to the deep-red flowers of Oplismenus hirtellus. Oplismenus undulatifolius is a shallow rooted perennial with stolons that may grow to several feet in length. The leaves of overwintering plants become brown and dead, but in the spring, new growth begins at the upper nodes of the stolons. In early fall, the sticky awns readily adhere to anything that brushes against them which makes for an effective mode of dispersal.
The calyx has five sepals in the form of awns almost as long as the petals. After the flowers have dropped, the calyces together with the bracts form a spiky ball that may be the reason for the "pincushion" common name. The calyx is persistent and remains as a crown on the fruit after it is shed. The corolla has four to five lobes fringing a narrow funnel with a furry throat, the funnel being somewhat longer than the lobes.
1121 and Muradabadi 6465 Extra Long Grain Rice. Pakistani varieties of basmati rice are PK 385, Super Kernel Basmati Rice and D-98. Scientists at Indian Agricultural Research Institute, Delhi, used conventional plant breeding to produce a hybrid semi-dwarf plant which had most of the good features of traditional basmati (grain elongation, fragrance, alkali content). This hybrid was called Pusa Basmati-1 (PB1; also called "Todal", because the flower has awns); crop yield is up to twice as high as traditional varieties.
The Florida Everglades is the "River of Grass", and seasonally flooded river grassland with 15 foot pythons and home to the American crocodile. This is region characterized as having open expanses of tall grasses, such as sawgrass and three-awns, interspersed with hardy, drought-resistant trees and shrubs. Many tropical trees found in the nearby Caribbean are found in southern Florida. Many native palms are found across southern Florida, including coconut palms (the only area they can grow on the US mainland).
Wheat infected leaves with stem rust pathogen with a specific resistance gene Stem rust on wheat is characterized by the presence of uredinia on the plant, which are brick-red, elongated, blister-like pustules that are easily shaken off. They most frequently occur on the leaf sheaths, but are also found on stems, leaves, glumes and awns. On leaves they develop mostly on the underside but may penetrate to the upperside. On leaf sheaths and glumes pustules rupture the epidermis, giving a ragged appearance.
Eupodium is a genus of ferns in the family Marattiaceae native to the Neotropics. Traditionally, many taxonomists have included Eupodium within the genus Marattia (along with Ptisana). However, molecular phylogenetic studies and morphological studies of extant and fossil taxa support the recognition of Eupodium as a lineage distinct from Marattia. Morphologically, Eupodium was thought to be distinct among the Marattiaceae in only having one frond at a time (occasionally two), bearing awns along veins, and having stalked synangia (clusters of sporangia that have become fused in development).
It is considered a weed because of this competitive ability and the dangers it poses to wildlife and livestock. While foxtail barley may be palatable for animals in early spring before it flowers, its seed heads, when dry, are very harmful to grazing animals. The awns can harm animals, as their upward-pointing barbs become easily attached and embedded in the animal's mouth and face, causing severe irritation, abscesses, and even blindness. In horses in can cause painful ulcers and excessive salivation resulting in eating difficulties.
E. argophylla is a perennial herb up to tall, appearing silvery because of many small hairs pressed against the leaves. Leaf blades are up to long, with wings running along the sides of the petioles. Appearing in April and May, the flower heads are yellow, at the ends of long peduncles, each head with as many as 35 ray florets and up to 500 tiny disc florets. The achene is strongly flattened, covered with small hairs, and sometimes with a pappus of 2 awns up to 2 mm long (unlike some of the related species).
Pappus of Cirsium arvense The pappus is the modified calyx, the part of an individual floret, that surrounds the base of the corolla tube in flower heads of the plant family Asteraceae. The term is sometimes used in other plant families such as Asclepiadaceae (milkweeds), whose seeds have a similar structure attached, although it is not related to the calyx of the flower. The Asteraceae pappus may be composed of bristles (sometimes feathery), awns, scales, or may be absent. In some species, the pappus is too small to see without magnification.
Flora of North America In general, it is an erect plant growing up to 40 centimeters tall. The stem, leaves, bracts, and flowers can all be reddish to decidedly purple-red in color, and when a good-sized population is in bloom it can be spotted even from aircraft as a mark of red against an otherwise brownish hillside landscape. The inflorescence is a cluster of flowers surrounded by six red or purple bracts with hooked awns. The flower is a few millimeters across and is red or purple with a white or yellow throat.
1919 new Matangi Glaxo factory Sir George Grey Special Collections, Auckland Libraries, AWNS-19191120-38-1 The natural vegetation would have been mostly have been a mixed bush of totara, matai, rimu, kahikatea, titoki, tawa, and rewarewa. Virtually nothing remains of it. Te Iti o Hauā marae, of Ngāti Haua, Ngāti Paretekawa and Ngāti Ngutu, is east of Matangi on Tauwhare Rd. These original owners lost most of their land to confiscation or sales following the 1860s New Zealand wars. In 1884, the Cambridge branch opened with a station at Tamahere, renamed Matangi in 1906.
During the growing season, the bacteria may transfer from plant to plant by contact, but it is primarily spread by rain, wind and insect contact. The bacteria thrives in moist environments, and produces a cream to yellow bacterial ooze, which, when dry, appears light colored and scale-like, resulting in a streak on the leaves. The invasion of the head of wheat causes bands of necrotic tissue on the awns, which is called Black Chaff.[14] The disease is not easily managed, as there are no pesticides on the market for treatment of the infection.
Spikelets showing the characteristic three awns apiece Aristida purpurea is a species of grass native to North America which is known by the common name purple three-awn. This grass is fairly widespread and can be found across the western two thirds of the United States, much of southern Canada and parts of northern Mexico. It is most abundant on the plains. This is a perennial bunchgrass, growing erect to under a meter-3 feet in height, and the flower glumes often assumes a light brown to reddish-purple color.
Bromus species occur in many habitats in temperate regions of the world, including Africa, America, Australia and Eurasia. There are considerable morphological differences between some species, while the morphological differences between others (usually those species that are closely related) are subtle and difficult to distinguish. As such, the taxonomy of the genus is complicated. Bromus is distinguished from other grass genera by a combination of several morphological characteristics, including leaf sheaths that are closed (connate) for most of their length, awns that are usually inserted subapically, and hairy appendages on the ovary.
The common name "ripgut brome" refers to the heavy sclerotization of the species, creating a hazard to livestock. The seeds of the plant can penetrate the skin of livestock and the callus and awns can penetrate the mouth, eyes, and intestines of livestock. Bromus rigidus differs from the closely related Bromus diandrus in its shorter laminar hairs and more compact panicle with shorter spikelet branches. The elliptical abscission scars on rachillae and elongated lemma calluses of B. rigidus further distinguish the species from B. diandrus, with the latter possessing more short and circular scars and calluses.
Protea eximia, the broad-leaved sugarbush, is a shrub that may become a small tree, which occurs in mountain fynbos on mainly acidic sandy soils; the species was very well known under its old name of Protea latifolia. The flowers have awns that are covered in purple-black velvety hairs, and are contained within a series of rings of involucral bracts that have the appearance of petals. The fruit is a densely hairy nut, many of which are inserted on a woody base. The flowers are borne terminally on long shoots, and have a tendency to become very untidy as they age.
This fate is shared by oats (Avena), which also tolerate poorer conditions, and like rye, grow as a weed alongside wheat and barley. Derived from a wild species (Avena sterilis), it has thus come to be a crop in its own right. Once again paralleling wheat, rye and other cereals, oats have developed tough spindles which prevent seeds from easily dropping off, and other characters which also help in natural dispersal have become vestigial, including the awns which allow them to self bury. The flax-dodder (Cuscuta epilinum) is a creeper that grows around flax and linseed plants.
Tropicos, Pappobolus S.F. Blake Pappobolus is distinguished from closely related genera by its combination of shrubby habit and usually caducous pappus. Within the genus there is considerable variation in the pappus, a structure that has traditionally been considered a key to defining genera in Asteraceae, and this led to earlier confusion in defining the genus. Most of the species of the genus were originally described as members of Helianthus, based on having a pappus of two caducous awns. When it was recognized that they were not part of the exclusively North American Helianthus, they were transferred to a genus called Helianthopsis.
The Kew specimen is labelled as being a 'type', perhaps it is the holotype, but it may also be an isotype, because the National Herbarium in Pretoria also has a sheet with the collection number Primos#85, this sheet having more exsiccata material attached to it. This sheet is labelled, also by Primos, as being collected at the exact same locality, but on December 1928, and confusingly, it is stored as the holotype of the species P. laetans, which was first collected from along the Blyde River in Mpumalanga. The Latin word aristata means 'awned' and refers to the prominent awns on the lip found atop the perianth.
Auckland Weekly News 30 October 1919 Sir George Grey Special Collections, Auckland Libraries, AWNS-19191030-39-20 Richard Francis Bollard (23 May 1863 – 25 August 1927) was a farmer and New Zealand politician of the Reform Party. He represented the Raglan electorate from 1911 to 1927, when he died. As Minister of Internal Affairs, he was a cabinet minister from 1923 to 1927 in the Reform Government. He was reported making speeches and opening events and buildings; in 1912 farewelling the local publican, in 1914 opening Matangi post office, in 1915 opening the Winter Show of the Raglan A. and P. AssociationWaikato Times, Volume 84, Issue 13181, 22 May 1915, Page 4 and opening Whatawhata post office.
Wild barley is an annual grass and is very similar in form to cultivated barley (Hordeum vulgare) but has slightly narrower leaves, longer stems, longer awns, a brittle rachis, a longer, more slender seed spike and smaller grains. Characteristics of the wild plant that enhance its survival and dispersal include the brittle rachis (the central part of the seed head), which breaks when the grain is ripe, and the hulled seeds, which are arranged in two rows. In cultivated varieties, the rachis is more durable and the seeds are usually arranged in four or six rows. In the east, barley is usually grown for human consumption and the naked form of the grain is preferred, while in the west, the hulled form is mainly grown.
Hawaiian Vaccinium (blueberries) is a monophyletic group (a clade including all extant species and their common ancestor) comprising three species endemic to the archipelago of Hawaii: Vaccinium reticulatum, Vaccinium dentatum and Vaccinium calycinum, commonly known in Hawaii as ʻōhelo. While Vaccinium as a larger group is characterized by an inferior ovary and brightly-colored berries that are indehiscent, the Hawaiian group has traditionally been distinguished as having uniquely well-developed calyx lobes and longer calyx tube depth, more cylindrical corolla shape (as compared to urceolate-globose), reduced or absent staminal awns (as opposed to well-developed), longer pedicel length, and — compared with temperate relatives — much longer leaf persistence. They are terrestrial or epiphytic shrubs, typically 1 - 6 feet in height, occasionally up to 10 feet, ranging widely throughout the Hawaiian islands over relatively high elevation (500 - 3,700 m). The three species thrive in many plant communities, except for Vaccinium reticulatum, which tends to thrive around lava flows, yet is not limited to them.

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