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OHIO BIOLOGICAL SURVEY 
3. Aristida gracilis Ell. Slender Triple-awn-grass. A glabrous 
annual grass with slender, sparingly branched stems, ^-2 ft. high, 
in small tufts or solitary, with rather close sheaths, and with a 
spike-like, slender panicle or raceme. Lemma usually mottled, with 
a horizontal middle awn and two much shorter, erect, lateral awns. 
In dry sandy soil. Aug., Sept. Hamilton, Clermont, Athens, 
Erie, Cuyahoga. 
4. - Aristida purpurascens Poir. Purplish Triple-awn-grass. A 
glabrous perennial grass, growing in small tufts, with erect, simple 
or sparingly branched stems, 1 - 23/2 ft. high, and with a strict or 
sometimes nodding purplish panicle with appressed branches. Lemma 
with a horizontal middle awn and two somewhat shorter erect or 
divergent lateral awns. 
In dry sandy or gravelly soil. Sept., Oct. Wood, Fulton. 
