FORKTIP THREEAWN
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File Size: 48 KB |
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Aristida basiramea Engelm. ex Vasey
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Russell County, Kansas |
Annual |
Height: 12-20 inches |
Family: Poaceae - Grass Family |
Flowering Period: August, September |
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Culms: | | Erect, wiry, hollow, glabrous, often rough, branching at nodes. | Blades: | | Very narrow, pale green, flat to often rolled inward, 1.2 to 3.2 inches long, 1/25 to 1/16 inch wide, glabrous or nearly so, sometimes soft-hairy near collar. | Sheaths: | | Shorter than internodes, glabrous to rough. | Ligules: | | Small, hairy. | Inflorescences: | | Panicles, narrow, terminal and axillary; terminal 2 to 4 inches long, 2/5 to 4/5 inch wide, rather loose, branches ascending; lateral shorter, more slender, scarcely surpassing the sheaths. | Spikelets: | | Few, 1-flowered; glumes unequal, 1-veined, brown to purplish, tapering to points with short awns; upper glume 1/2 to 3/5 inch long; lower glume 1/4 to 2/5 inch long; lemmas narrow, firm, 1/3 to 2/5 inch long, light grey, mottled; bases prominent, soft-hairy; tip 3-awned; central awn 2/5 to 3/5 inch long, spirally coiled at base when dry; lateral awns 1/5 to 2/5 inch long, somewhat spreading, often curved or twisted at base but not coiled. | Habitat: | | Open disturbed areas, pastures, roadsides, waste ground; dry, sandy soils. | Distribution: | | East 2/3 of Kansas. | Origin: | | Native | Comments: | | Tufted |
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Forktip threeawn spikelets | | 48 KB | Russell County, Kansas |
| Forktip threeawn awns | | 32 KB | Russell County, Kansas |
| Forktip threeawn inflorescence | | 44 KB | Russell County, Kansas |
| Forktip threeawn | | 168 KB | Russell County, Kansas |
| Forktip threeawn | | 56 KB | Russell County, Kansas |
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