Leptochloa fusca subsp. uninervia

Illustrator: Linda A. Vorobik, Karen Klitz

Copyright: Utah State University

Culms (15)25-110 cm, more or less erect, often branch¬ing from the aerial nodes. Blades usually densely scabrous on both surfaces, not exceeding the panicle. Panicles 10-57 cm long, (0.5)3-18 cm wide, often ellipsoidal, usually completely exserted from the upper¬most leaf sheaths; branches 2-11 cm, mostly ascending. Spikelets 5-10 mm. Lower glumes 1-2.6 mm, narrowly triangular to ovate; upper glumes 1.8-2.8 mm, obovate to widely obovate; lemmas 2-3.6 mm, light brown, dark green, or lead-colored, usually without a basal dark spot, apices usually truncate or obtuse, rarely broadly acute, sometimes bifid, sometimes mucronate; anthers 3, 0.2-0.6(1) mm. Caryopses 1-1.5 mm.

Discussion

Leptochloa fusca subsp. uninervia is native from the southern United States to Argentina. It may be confused with L. scabra, from which it usually differs in its truncate or obtuse lemmas.

Selected References

None.

Lower Taxa

None.