SIXWEEKS THREEAWN
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Aristida adscensionis  L.
Grant County, Kansas (Marion McGlohon photo)
Annual
Height: 4-22+ inches
Family: Poaceae – Grass Family
Flowering Period:   May, June, July, August, September
Culms: Erect to spreading, much-branched; internodes glabrous.
Blades: Mostly cauline; linear, 2 to 6 inches long, to 1/10 inch wide, flat or involute, glabrous.
Sheaths: Terete, shorter than internode, glabrous.
Ligules: Ciliate membrane, to 1/25 inch.
Inflorescences: Panicles, narrow, erect to nodding, 2 to 7 inches long, to 1.2 inch wide, congested; branches ascending to appressed, .4 to 1.6 inch, 3-8 spikelets per branch; pedicels shorter than the spikelets.
Spikelets: Green to purplish, solitary, terete, 1/3 to 1/2 inch long, crowded, 1-flowered; first glume shorter than second; lemma tipped with three branching, nearly equal awns .2 to .8 inch long.
Habitat: Prairies, stream beds, disturbed and waste areas, roadsides: often in dry, sandy soils.
Distribution: Principally west third of Kansas; occasionally observed eastward.
Origin: Native
Forage Value: Unpalatable to livestock after the first few weeks of growth.
Comments: Very variable in height and inflorescence size.

Sixweeks threeawn
310 KB
Grant County, Kansas (Marion McGlohon photo)