Monocotyledon | Literature for Paspalum dilatatum
Wagner et al., 1990, 1999; Lorence & Wagner, 2019. |
Poaceae -- The Grass Family | Bibliography |
Paspalum dilatatum | |
Common name(s): dallis grass |
General Information | ||
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Distribution | Native to South America, widely naturalized.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i. | |
Habit |
Perennial; culms tufted, erect or ascending from decumbent base, sometimes rooting at proximal nodes, 4‒12 dm tall, glabrous or nodes sometimes slightly villous, compressed. |
|
Leaves |
Leaves with sheath 6‒15 cm long, compressed, usually long-hispid at throat and along margin near base, basal ones usually densely villous; ligule 3‒5 mm long, membranous,
bluntly triangular; blade flat, 10‒20 cm long, 5‒15 mm wide, midrib slightly
keeled, margin slightly scabrous, apex
acute. |
|
Flowers |
Inflorescences composed of 3–5 racemes, ascending or drooping, 5‒8 cm
long, arranged along distal 6‒12 cm of
primary axis, long-hispid near base, rachis flat, winged, 1‒1.5 mm wide, margin slightly scabrous, sometimes undulate. Spikelets paired, imbricate, depressed plano-convex, ovate, 3‒4 mm long, apex acute; first glume absent, second glume and first lemma alike, ovate, 3‒4 mm long, (3‒)5‒7-veined, midrib prominent, sparsely short-pilose, margin silky pilose, apex beaked; second lemma chartaceous to indurate, ovate, slightly convex,
ca. 2.5 mm long, ca. 2 mm wide, faintly 3-veined, glabrous, margin involute, apex obtuse; palea similar to lemma, flat to concave, 2-veined. |
|
Fruit |
Caryopses reddish brown, broadly elliptic, compressed, ca. 2 mm long, ca. 1.5 mm wide. |
|
Chromosomes |
2n = 40, 50-63 |
|
Contributor |
Nancy Khan |