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 | | Glumes subequal, ovate-oblong, membranous; lower glumes 1.5-2.4 mm; upper glumes 1.8-3(3.2) mm; lemmas 2.1-3 mm, ovate to lanceolate, membranous, glabrous, acute; paleas 2.1-3 mm, ovate, membranous; anthers 3, 1-1.7 mm, yellowish. |
 | | Glumes unequal, narrowly lanceolate, membranous, prominently keeled; lower glumes 0.6-2 mm; upper glumes 2-3.5(4) mm, subequal to the lemmas; lemmas 2.5-3.5(4) mm, linear-lanceolate, membranous, glabrous, acute; paleas 2.4-3.4(3.8) mm, linear-lanceolate, membranous, glabrous; anthers 0.6-1 mm, yellowish. |
 | | Glumes unequal, linear-lanceolate to lanceolate or ovate, hyaline to membranous; lower glumes 0.9-3 mm; upper glumes 2.9-3.8 mm, subequal to the florets; lemmas 2.9-3.8 mm, ovate, membranous, glabrous, acute; paleas 2.9-3.8 mm, ovate, membranous; anthers 1.5-2 mm, yellowish to purplish. |
| herbarium.usu.edu /treatments/Sporobolus.htm (7000 words) |
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