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."