Difference between revisions of "Aristida purpurea var. fendleriana"

(Steud.) Vasey
Common names: Fendler's threeawn
Synonyms: Aristida fendleriana
Treatment appears in FNA Volume 25. Treatment on page 332.
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|subfamily=Poaceae subfam. Aristidoideae
 
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|tribe=Poaceae tribe Aristideae

Revision as of 21:58, 27 May 2020

Culms 10-40 cm. Leaves mostly cauline; blades 4-10 cm, involute. Panicles 3-14(15) cm; primary branches mostly appressed, stiff, straight, without axillary pulvini, with few spikelets. Lower glumes 5-8 mm; upper glumes 10-15 mm; lemmas 8-14 mm long, apices 0.2-0.3 wide; awns subequal, 18-40 mm long, occasionally slightly longer, 0.2-0.3 mm wide at the base. 2n = 22, 44.

Distribution

N.Mex., Tex., Utah, Colo., Mont., Nebr., Wyo., Calif., Kans., N.Dak., Nev., Okla., Ariz., S.Dak.

Discussion

Aristida purpurea var. fendleriana grows on open slopes, hills, and sandy flats, at low to medium elevations, from the western United States into northern Mexico. It is often confused with var. longiseta, having short basal leaves and short panicles, but plants of var. fendleriana have narrower lemma apices and thinner, shorter awns than those of var. longiseta.

Selected References

None.

Lower Taxa

None.