Sheath bases sparsely hairy, hairs papillose-based. Spikelets 2.3-4.6 mm. Glumes usually longer than the florets; lemmas 2.1-3.9 mm, faintly 3-veined; paleas 2.1-4 mm. Fruits 1.1-2 mm.

Sporobolus vaginiflorus var. ozarkanus grows primarily in the central and southeastern United States.

Lower sheaths rather sparsely pustulate-pilose; glumes a little longer than the smooth, 3-nerved lemma; palea obtuse, shorter than the lemma; otherwise much like no. 11 [Sporobolus vaginiflorus (A. Gray) A. W. Wood]. Dry sandy or sterile soil; Mo. to Ky., w. and s. to Kans., Ark., and Tex. (S. vaginiflorus var. o.; S. neglectus var. o.)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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