|Monocotyledon|| Literature for Sporobolus africanus
Wagner et al., 1990, 1999; Lorence & Wagner 2019..
|Poaceae -- The Grass Family||Bibliography|
Common name(s): dropseed, African dropseed, rattail grass, smutgrass
|Distribution||Native to Africa, widely naturalized in many regions.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i.|
||Perennial; culms sparsely to densely
tufted, wiry, 3‒10 dm tall.
||Leaves with sheath 4‒12 cm long, compressed, pilose at throat and along margin, but otherwise glabrous; ligule ciliate, less than 0.2 mm long; blade flat to weakly involute, 10‒25 cm long, 2‒5 mm wide at base, glabrous,
||Inflorescences a panicle, 15‒25 cm long, erect, spikelike, sometimes interrupted at base, branches short,
closely appressed. Spikelets (1.5‒)2‒2.8 mm long, glabrous; first glume oblong, 0.4‒0.7 mm long, apex obtuse, second glume ovate, 1‒1.5 mm long, apex acute; lemma oblong to lanceolate, ca. 2 mm long, faintly 3-veined, hyaline, apex obtuse to acute; palea as long as lemma; stamens 3.
||Caryopses dark red, obovate, 1.2‒1.5 mm long, apex obtuse to truncate,
readily separating from the spikelet, but often adhering to the panicle for some time after maturity by the mucilaginous pericarp.
||2n = 18, 36
||First collected around Toovii, Nuku Hiva in July 2004 (L’Helguen 016).