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Info
Subfamily: Panicoideae
Genus etymology: Paspalum = "millet" [Greek] some species are used as cereals
Species etymology: langei = honorific for Johann Martin Christian Lange (1818–1898)
Photosynthetic type: C4 (warm season)
Nativity: naturalized - accidental
First recorded in Hawaiʻi: 2022
Map
Inflorescence
Plant
Habit
Spikelets
Description
Plants perennial; cespitose. Culms 23–125 cm, erect; nodes glabrous or pubescent. Sheaths glabrous or pubescent; ligules 0.6–1.9 mm; blades to 38 cm long, 4–18 mm wide, flat, glabrous or pubescent, dark green. Panicles terminal, with 1–3(4) racemosely arranged branches; branches 2.3–13.4 cm, erect to divergent, terminating in a spikelet; branch axes 0.2–1 mm wide, glabrous, margins scabrous. Spikelets 2.1– 3.3 mm long, 1.3–1.6 mm wide, paired, imbricate, appressed to the branch axes, elliptic to obovate, stramineous to brown. Lower glumes 0.4–1.2(1.8) mm, stramineous to brown; upper glumes with papillose-based short pubescence, 3- or 5- veined, margins entire, lower lemmas with papillose-based short pubescence, lacking ribs over the veins, 3-veined, margins entire; upper florets light stramineous. Caryopses 1.3–1.5 mm, light to dark brown. 2n = 40, 60.
(Description source: Barkworth, M.E., Capels, K.M., Long, S. & Piep, M.B. (eds.) 2003. Flora of North America, north of Mexico. Volume 25. Magnoliophyta: Commelinidae (in part): Poaceae, Part 2. Oxford University Press, New York. 783 pp http://floranorthamerica.org/Paspalum_langei )