Schizachyrium hirtiflorum Nees. Hairy Crimson Bluestem. Phen: Aug-Nov. Hab: Pine flatwoods, longleaf pine sandhills, disturbed sandy sites. Dist: Sw. GA and FL west to AZ and south through Central America to South America; West Indies.

Origin/Endemic status: Native

Taxonomy Comments: We here interpret Schizachyrium hirtiflorum as the New World component , related to Old World S. sanguineum, but do not distinguish minor variations in pubescence of the glumes.

Synonymy: = Andropogon hirtiflorus (Nees) Kunth – S; > Andropogon hirtiflorus (Nees) Kunth – HC; > Andropogon semiberbis (Nees) Kunth – HC; > Schizachyrium feense (E.Fournier) A.Camus – Tx; > Schizachyrium oligostachyum (Chapm.) Nash – S13; < Schizachyrium sanguineum (Retz.) Alston – K3, K4, Mex, WH3; > Schizachyrium sanguineum (Retz.) Alston var. brevipedicellatum (Beal) Hatch – WI; > Schizachyrium sanguineum (Retz.) Alston var. hirtiflorum (Nees) Hatch – FlGr, FNA25, K1, Hatch (1984); > Schizachyrium sanguineum var. oligostachyum (Chapm.) S.L.Hatch; >< Schizachyrium sanguineum (Retz.) Alston var. sanguineum – FlGr, K1, WI; > Schizachyrium semiberbe Nees – Bah, S13

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Heliophily: 9