Aristida purpurascens var. tenuispica
Aristida purpurascens var. purpurascens
arrowfeather threeawn
arrowfeather threeawn
8-9 mm, subequal;
awns 12-18 mm, of equal thickness, spirally contorted at the base, divergent.
unequal;
lower glumes 6-10 mm, usually longer than the upper glumes;
upper glumes 5-8 mm;
awns 15-25 mm, of equal thickness, straight or only slightly contorted, divergent.
sheaths shorter or longer than the internodes, glabrous;
blades usually about 1 mm wide, usually not curling.
sheaths longer than the internodes, usually glabrous, or occasionally with appressed-pilose hairs;
blades 1-3 mm wide, often curling.
Aristida purpurascens var. tenuispica
Aristida purpurascens var. purpurascens
Aristida purpurascens var. tenuispica grows in pine and oak woods, prairies, and along roadsides, at low elevations and usually in sandy soils. Within the Flora region, it grows on the coastal plain from North Carolina to Mississippi. It also grows in Mexico and Honduras.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Aristida purpurascens var. purpurascens grows in waste places, glades, fields, and pine savannahs in sandy or clay soils. Its range extends into northern Mexico.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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