ARROWFEATHER THREEAWN
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| File Size: 157 KB |
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Aristida purpurascens Poir.
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| Russell County, Kansas |
| Perennial |
| Height: 15 to 30 inches tall |
| Family: Poaceae - Grass Family |
| Flowering Period: September,October |
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| Culms: | | Stiffly erect, simple or sparingly branched, glabrous. | | Blades: | | Flat or involute near the tip, 4 to 8 inches long, less than .08 inch wide; upper surface occasionally with a few hairs near the base. | | Sheaths: | | Keeled, flattened, glabrous to sparsely hairy. | | Ligules: | | Short, hairy. | | Inflorescences: | | Panicle, narrow, slender, 4 to 12 inches long, purplish-gray or brownish; branches less than one inch long, crowded in upper portion of inflorescence. | | Spikelets: | | Narrow, crowded, one-flowered; first glume slightly longer than the second; lemma often covered with purplish spots; awns three, .6 to 1 inch long; central awn slightly longer than lateral two. | | Habitat: | | Dry, sandy soils. | | Distribution: | | Principally in the east half of Kansas. | | Reproduction: | | Reproduces by seed. | | Comments: | | Arrowfeather threeawn is an invader that will increase in overgrazed pastures. | | | | Compare with purple threeawn and prairie threeawn. |
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| Arrowfeather threeawn inflorescence |  | | 155 KB | | Russell County, Kansas |
| | Arrowfeather threeawn spikelet |  | | 53 KB | | Russell County, Kansas |
| | Arrowfeather threeawn |  | | 145 KB | | Russell County, Kansas |
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