Sprangletop - Leptochloa fusca
Leptochloa fascicularis, Diplachne fusca
Warm season annual bunchgrass. Stems 10–40 cm. Leaves: blades 2–4 mm wide, flat and ascending; sheaths with overlapping margins; ligule membranous. Inflorescence a panicle of secund lateral spikes but these often congested in leaf sheaths and adjacent leaf blades. Spikelets 4–7 mm long with 5 to 7 florets; glumes similar in size to lemmas. Lemmas hairy, awn-tipped, distinctly 3-nerved; palea enfolded by floret. Disarticulation above glumes; unit of dispersal the floret (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
Our plants are subspecies fascicularis
; a recent molecular study supports treatment of this taxon as Diplachne fusca
(Peterson et al., 2012; Annals of Botany 109: 1317-1329).
Most frequently in seasonally saturated disturbed areas such as receding margins of reservoirs or muddy roadsides, less frequently along sidewalks or vacant lots.