Knotgrass
Paspalum distichum L.Poaceae

common name synonyms: Couch Paspalum, Eternity Grass, Ginger Grass, Joint Grass, Seaside Millet, Water Couch

scientific name synonyms: ssp. paspalodes, var. indutum, P. paspaloides, P. paspalodes, P. distichon, Digitaria paspalodes, D. paspaloides

subclass: Monocotyledoneae

superorder: Commelinidae

order: Poales

growth form: herb, grass

life history: perennial

level of invasiveness: invasive

weedy in native range: Yes

noxious weed in the u.s.: No

type of introduction: Accidental

number of vectors: 5.0

introduced range: Europe, France, Israel, Britain, Acores, Portugal

native range: Tropical America

notes: in Fl. Eur. as P. paspalodes, Paspalum distichum auct., non L., non-native; var. indutum, P. paspalodes, P. paspaloides, Digitaria paspalodes, D. paspaloides; irrigation favors extent in cultivation (Guillerm); an esparto, wool and prob. bird seed alien, established for several years on sandy ground in W. Cornwall, recently found in Middlesex, cultivated from soya and cotton seed; plants expanding their range in Portugal; weed in Chile, Honduras, Argentina, Peru, Brazil, Ecuador, Jamaica, etc.

invasiveness notes: invasive




Credits: Credits: (c) 2001-2006 J. Forman Orth