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Physical Description ( englanti )

tarjonnut USDA PLANTS text
Perennials, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem internodes solid or spongy, Stems with inflorescence less than 1 m tall, Stems with inflorescence 1-2 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, Leaves conspicuously 2-ranked, dist ichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath hairy, hispid or prickly, Leaf sheath hairy at summit, throat, or collar, Leaf sheath or blade keeled, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf blades 1-2 cm wide, Leaf blades mostly flat, Leaf blade margins folded, involute, or conduplicate, Leaf blade with prominently raised or widened midvein, Leaf blades mostly glabrous, Leaf blades scabrous, roughened, or wrinkled, Ligule present, Ligule a fringed, ciliate, or lobed membrane, Ligule a fringe of hairs, Inflorescence terminal, Inflorescence a dense slender spike-like panicle or raceme, branches contracted, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence a panicle with narrowly racemose or spicate branches, Inflorescence branches more than 10 to numerous, Rachis angular, Rachis or rachillae sparsely to dens ely villous, with stiff yellow or red hairs, Flowers bisexual, Spikelets sessile or subsessile, Spikelets dorsally compressed or terete, Spikelet 3-10 mm wide, Spikelets with 1 fertile floret, Spikelets with 2 florets, Spikelet with 1 fertile floret and 1-2 sterile florets, Spikelets solitary at rachis nodes, Spikelets 1-4 in short bristly fascicles, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating below the glumes, Spikelets falling with parts of disarticulating rachis or pedicel, Spikelets in bur-like clusters or fascicles with fused bracts, bristles or spines, Spikelet bristles fused together, Spikelets all subtended by bristles, Spikelet bristles 4-many, Spikelet bracts or bristles disarticulating with spikelet, Spikelets in dense head-like clusters, Rachilla or pedicel glabrous, Pistillate spikelet enclosed in hard bony involucre, Glumes present, empty bracts, Glumes 2 clearly present, Glumes distinctly unequal, Glumes shorter than adjacen t lemma, Glumes equal to or longer than adjacent lemma, Glumes 1 nerved, Glumes 3 nerved, Glumes 4-7 nerved, Lemma similar in texture to glumes, Lemma coriaceous, firmer or thicker in texture than the glumes, Lemma 3 nerved, Lemma 5-7 nerved, Lemma glabrous, Lemma apex truncate, rounded, or obtuse, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Palea present, well developed, Palea about equal to lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.
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kääntäjä
Dr. David Bogler
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Missouri Botanical Garden
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USDA NRCS NPDC
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USDA PLANTS text

Cenchrus agrimonioides ( englanti )

tarjonnut wikipedia EN

Cenchrus agrimonioides is a rare species of grass in the family Poaceae that is endemic to the Hawaiian Islands. Its common names include Kāmanomano and agrimony sandbur. It was formerly distributed throughout the major islands but today it is nearly limited to Oʻahu. Kāmanomano inhabits dry to moist forests and lava plains. It is threatened by competition with non-native plants, predation by ungulates, and wildfire. When this plant became a federally listed endangered species of the United States in 1996 there were fewer than 100 individuals remaining.[3] More recent counts revealed 181 wild individuals on Oʻahu and over 300 more which have been planted to augment the populations.[3] This plant is nearly restricted to the island of Oʻahu, but there are a few individuals known on Maui.[3] A few patches of the grass have been planted on Kahoʻolawe, as well.[3]

C. agrimonioides var. agrimonioides

Cenchrus agrimonioides var. laysanensis, a variety of this species endemic to the Northwestern Hawaiian Islands, became extinct in the 1980s.[4] Remaining plants of this species are the variety agrimonioides.[3]

This is a perennial grass which produces is flowers and fruits within spiny burs.[5] These burs attach to animals, which might then disperse the seeds.[3]

References

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Wikipedia authors and editors
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wikipedia EN

Cenchrus agrimonioides: Brief Summary ( englanti )

tarjonnut wikipedia EN

Cenchrus agrimonioides is a rare species of grass in the family Poaceae that is endemic to the Hawaiian Islands. Its common names include Kāmanomano and agrimony sandbur. It was formerly distributed throughout the major islands but today it is nearly limited to Oʻahu. Kāmanomano inhabits dry to moist forests and lava plains. It is threatened by competition with non-native plants, predation by ungulates, and wildfire. When this plant became a federally listed endangered species of the United States in 1996 there were fewer than 100 individuals remaining. More recent counts revealed 181 wild individuals on Oʻahu and over 300 more which have been planted to augment the populations. This plant is nearly restricted to the island of Oʻahu, but there are a few individuals known on Maui. A few patches of the grass have been planted on Kahoʻolawe, as well.

C. agrimonioides var. agrimonioides

Cenchrus agrimonioides var. laysanensis, a variety of this species endemic to the Northwestern Hawaiian Islands, became extinct in the 1980s. Remaining plants of this species are the variety agrimonioides.

This is a perennial grass which produces is flowers and fruits within spiny burs. These burs attach to animals, which might then disperse the seeds.

lisenssi
cc-by-sa-3.0
tekijänoikeus
Wikipedia authors and editors
alkuperäinen
käy lähteessä
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wikipedia EN

Cenchrus agrimonioides ( vietnam )

tarjonnut wikipedia VI


Cenchrus agrimonioides là một loài cỏ trong họ Poaceae, đặc hữu của Hawaii.

Tham khảo

  1. ^ Bruegmann, M.M.; Caraway, V. (2003). Cenchrus agrimonioides. 2008 Sách đỏ IUCN. Liên minh Bảo tồn Thiên nhiên Quốc tế 2008. Truy cập ngày 2009-03-07.

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Cenchrus agrimonioides: Brief Summary ( vietnam )

tarjonnut wikipedia VI


Cenchrus agrimonioides là một loài cỏ trong họ Poaceae, đặc hữu của Hawaii.

lisenssi
cc-by-sa-3.0
tekijänoikeus
Wikipedia tác giả và biên tập viên
alkuperäinen
käy lähteessä
kumppanisivusto
wikipedia VI