Common names: S-curve threeawn
Synonyms: Aristida ramosissima var. chaseana unknown
Treatment appears in FNA Volume 25. Treatment on page 326.
Plants annual. Culms 20-60 cm, wiry. Leaves cauline; sheaths usually shorter than the internodes, mostly glabrous, sparsely hairy near the summit; collars hispidulous, occasionally glabrous; ligules 0.2-0.5 mm; blades 3-22 cm long, to 2 mm wide, flat to involute, glabrous abaxially, sparsely pilose adaxially, without a prominent midrib but with a thickened vein near each margin, pale to gray-green, sometimes slightly glaucous. Inflorescences paniculate or racemose, 5-12 cm long, 2-4 cm wide; primary branches barely developed. Spikelets appressed to slightly divergent from the axillary pulvini. Glumes subequal, apices bifid, awned from the sinuses; lower glumes (9)11-16 mm, 3-7-veined, awns 0.5-2(4) mm; upper glumes 11-18 mm, 1-3-veined, awns 3-7 mm; calluses 0.4-1 mm; lemmas (8)15-20(22) mm, dark, occasionally banded or spotted, apices narrowed but not beaklike; central awns 12-25 mm, bases with a semicircular bend; lateral awns 1-4 mm, erect, occasionally lacking; anthers 3, about 3 mm, brown. Caryopses 9-11 mm, dark brown to black. 2n = unknown.
Tenn., Okla., Tex., La., Mo., Ohio, Kans., Ark., Ill., Miss., Ind., Iowa, Ky.
Aristida ramosissima grows in open, dry, sterile ground, fallow fields, and roadsides. It is restricted to the United States.
No lower taxa listed.
Facts about "Aristida ramosissima"
|Author||Kelly W. Allred +|
|Authority||Engelm. ex A. Gray +|
|Common name||S-curve threeawn +|
|Distribution||Tenn. +, Okla. +, Tex. +, La. +, Mo. +, Ohio +, Kans. +, Ark. +, Ill. +, Miss. +, Ind. +, Iowa + and Ky. +|
|Source xml||https://email@example.com/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse grained fna xml/V25/V25 999.xml +|
|Synonyms||Aristida ramosissima var. chaseana +|
|Taxon family||Poaceae +|
|Taxon name||Aristida ramosissima +|
|Taxon parent||Aristida +|
|Taxon rank||species +|
|Volume||Volume 25 +|