Checklist » Poaceae » Digitaria ischaemum
Last updated 5/26/2009 by David Giblin.
Digitaria ischaemum (Schreb.) Muhl.[FNA25, HC, HC2]
smooth crabgrass

Publication: Descr. Gram. 131. 1817.

Origin: Introduced from Eurasia

selected vouchers: WTU

Notes: tropics of N and S America.

FNA25: "Digitaria ischaemum is a Eurasian weed that is now common in lawns, gardens, fields, and waste ground in warm-temperate regions throughout the world, including much of the Flora region. Larger plants with 5-7 inflorescence branches 8-15 cm long have been called D. ischaemum var. mississippiensis (Gatt.) Fernald, but they intergrade with more typical plants, and so do not merit taxonomic recognition."

References: (none)

Synonyms & Misapplied Names:
Digitaria ischaemum (Schreb.) Muhl. var. mississippiensis (Gatt.) Fernald
Panicum ischaemum Schreb.
Syntherisma ischaemum (Schreb.) Nash