Flora of the Hawaiian Islands
Monocotyledon Literature for Panicum repens
Wagner et al., 1990, 1999.
   Poaceae -- The Grass Family Bibliography
      Panicum repens

Common name(s): panic grass, quack grass, torpedo grass
General Information
DistributionA common weed in moist soils of warm temperate to tropical areas of the world.In the Hawaiian Islands, naturalized on O`ahu, Moloka`i, Lana`i, Maui, Hawai`i.

Rhizomatous perennials 10-130 cm tall, usually glabrous; stems usually unbranched, rhizomes developed, covered with bladeless sheaths.
Ligule a ciliate membrane, 0.4-1 mm long; blades 4-30 cm long, 0.2-0.8 cm wide, flat to involute, often conspicuously distichous, glabrous to pilose.
Panicles 3-19 cm long, the branches solitary; spikelets 2.5-3 mm long, oblong to lanceoloid-ellipsoid, acute, glabrous; first glume 0.6-0.8 mm long, ca. 1/5-1/3 as long as spikelet, hyaline, obtuse, obscurely nerved, second glume 7-9-nerved; first floret staminate, first lemma 7-9-nerved, first palea as long as first lemma; second floret 1.7-2.2 mm long, acute, glossy, smooth; anthers 1.4-1.7 mm long.
2n = 20, 36, 40, 45, 54, 60