| Monocotyledon | Literature for Paspalum urvillei
Wagner et al., 1990, 1999. |
| Poaceae -- The Grass Family | Bibliography |
| Paspalum urvillei | |
Common name(s): vasey grass |
| General Information | ||
|---|---|---|
| Distribution | Native to the New World, now naturalized in many subtropical regions.In the Hawaiian Islands, naturalized on Midway, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i. | |
| Habit |
Perennials; culms tufted, stout, erect, 7-25 dm tall, unbranched or branching from lower nodes, sometimes from the middle node, slightly compressed, glabrous, purplish toward base. |
|
| Leaves |
Sheaths keeled and coarsely hirsute or glabrate toward summit, the basal sheaths loose, the cauline sheaths glabrous or sometimes ciliate on margins, sometimes weakly auricled; ligule triangular, 3-5 mm long; blades flat, ascending, relatively firm, usually (12-)20-30(-65) cm long, 3-20 mm wide, densely long-pilose at the very base, margins scabrous, slightly rounded at base or narrowed to the width of the sheath. |
|
| Flowers |
Panicles erect, 10-42 cm long, peduncles angled, glabrous, racemes (6-)12-18(-25), ascending to slightly drooping, 7-14 cm long, the
rachis flat, narrowly winged, ca. 0.8 mm wide, with a few long hairs at base, margins scabrous, pedicels slender, flattened; spikelets paired, imbricate, ovate, depressed plano-convex, (2-)2.2-2.7(-3) mm long, 1.2-1.5 mm wide; first glume absent, second glume and first lemma equal, thin, 3-5-nerved, margins of both copiously pubescent with long silky white hairs, second glume sparsely appressed silky pubescent throughout; second lemma thick, cartilaginous, slightly convex, glabrous or nearly so at the middle, 3-nerved; palea flat to slightly convex, 2-nerved, similar to lemma. |
|
| Fruit |
Caryopsis pale, elliptic, plano-convex, 1.8-2 mm long, nearly smooth. |
|
| Chromosomes |
2n = 40, 60 |
|
