Flora of the Southeastern United States
2022 Edition

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Key to Dinebra

Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

1 Glumes 5.7-9 mm long, much longer than the florets
1 Glumes 0.7-4 mm long, from much shorter than the florets to about as long.
..2 Sheaths sparsely to densely hairy with papillose-based hairs.
....3 Glumes lanceolate to narrowly elliptic, not or only slightly exceeding the florets; lemmas 1.3-1.7 mm long; caryopses usually with a narrow, shallow ventral groove, smooth, the apices broadly obtuse to acute
....3 Glumes linear to narrowly lanceolate, exceeding the florets; lemmas 0.9-1.2 mm long; caryopses without a ventral groove, often somewhat coarsely rugose, the apices broadly obtuse
..2 Sheaths glabrous, or pubescent with non-papillose-based hairs.
......4 Panicles with 25-150 branches.
........5 Lemmas 2.4-3 mm long; anthers 0.6-0.8 mm long; spikelets 4-5 mm long
........5 Lemmas 1.2-2.4 mm long; anthers 0.2-0.6 mm long; spikelets 2.5-4.5 mm long.
..........6 Leaf blades 4-7 mm wide; lemmas 1-2 mm long.
..........6 Leaf blades 8-16 mm wide; lemmas 2.1-2.4 mm long
......4 Panicles with 2-25 branches.