Publication: Hort. Berol. 2: 209. 1833.
Origin: Introduced from the tropics
selected vouchers: Not at WTU; WS?
Notes: Reported from WA in FNA; spelling of colona follows FNA, corrected from colonum in H&C.
FNA25: "Echinochloa colona is widespread in tropical and subtropical regions. It is adventive and weedy in North America, growing in low-lying, damp to wet, disturbed areas, including rice fields. The unbranched, rather widely-spaced panicle branches make this one of the easier species of Echinochloa to recognize.
Hitchcock (1913) considered that colonum was a non-declining contraction, but dictionaries of Linnaeus' time treated it as a declining adjective. Because Linnaeus was the first to name the species (as Panicum colonum), it seems best to follow the practice considered correct in his day; hence E. colona. (See also Nicolson 1986.)"