Aristida curtissii (A. Gray) Nash. Common name: Curtiss's Three-awn. Phenology: Jul-Oct. Habitat: Roadsides, disturbed areas, bare eroding soil. Distribution: ME west to WY, south to n. FL, AR, OK, and CO, perhaps largely or adventive east of the Mississippi River.
Origin/Endemic status: Native
Taxonomy Comments: See Allred (1986) for a discussion of the rationale for reducing A. curtissii to a variety of A. dichotoma. Cronquist (1991) reduces it to a variety of the more western A. basiramea Engelmann ex Vasey. For now, and for simplicity, I prefer to retain the two as species.
Synonymy ⓘ: = G, HC, Il, K4, POWO, RAB, S, S13, Va; = Aristida basiramea Engelm. ex Vasey var. curtissii (A.Gray) Shinners — Ar, C; = Aristida dichotoma Michx. var. curtissii A.Gray — F, FlGr, FNA25, NS, Pa, Tn, W, WH3, WV, Allred (1986); = n/a — Tat; < Aristida basiramea Engelm. ex Vasey — Tx. Basionym: Aristida dichotoma Michx. var. curtissii A.Gray 1890
Links to other floras: = Aristida dichotoma var. curtissii - FNA25
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Heliophily ⓘ: 9
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© Keith Bradley | Original Image ⭷
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