Invasive Alien Species

Species Name: Echinochloa stagnina

Family Name:
Panicum stagninum Retz.
P. crus-galli (non Beauv.) Hooker f.
Rather robust, often much branched aquatic or swamp perennial with the lower part floating or, in shallow water, creeping with long rhizomes, rooting at the nodes, 50-200 cm long. Stem cylindrical, 30-60 cm tall. Leaf sheaths up to 15 cm long, free margin often hairy; ligule a dense fringe of stiff hairs, 1.25-3 mm long; blade linear 6-45 cm x 5-15 mm. Inflorescence a terminal, up to 25 cm long , erect to slightly bent panicle consisting of 5-30 pseudo-spikes turned to one side; spikelet in 4-rows, ellipsoid, flat-convex, awned, light green, 2-flowered. Caryopsis shining, ovoid, 2.4 x 1.4 mm .
Invaded Habitat:
Marshes, pools, riverbanks, soggy grasslands, lebak and tidal rice fields.
Java, Kalimantan, Sulawesi as far as known.
Found from 0-500 m altitude.
  1. Backer , C. A. & R. C. Bakhuizen Van Den Brink.  1965.  Flora of Java Vol. III.  N.V. P. Noordhoff. Groningen, Netherlands
  2. Soerjani, M.,  A. J. G. H. Kostermans & Gembong Tjitrosoepomo (Eds.).  1987.  Weeds of Rice in Indonesia. Balai Pustaka. Jakarta