Sporobolus compositus (Poiret) Merrill var. compositus . Tall Dropseed. Phen: Sep-Nov. Hab: Diabase glades and barrens, limestone glades and barrens, disturbed areas over diabase or calcareous rocks. Dist: The general range is centered in the Plains, but extending east into ne. United States. This species and variety are reported for NC in a revision of the S. asper group (Riggins 1977); little is known about the occurrence of this species in NC.

Origin/Endemic status: Native

Taxonomy Comments: The name S. compositus has nomenclatural priority over the more traditionally familiar S. asper (Kartesz & Gandhi 1995).

Synonymy: = Ar, ETx1, FNA25, K1, K3, K4, Mo1, NcTx, NE, NY, Tn, Va; = n/a – RAB; = Sporobolus asper (P.Beauv.) Kunth – F, S, WV; = Sporobolus asper (P.Beauv.) Kunth var. asper – C, G, HC, Riggins (1977); < Sporobolus asper (P.Beauv.) Kunth – Tx; < Sporobolus compositus (Poir.) Merr. – Il, Mi, Pa

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