Crabgrass

Also called  finger grass  any of about 300 species of grasses in the genus Digitaria (family Poaceae), especially D. sanguinalis or the slightly shorter D. ischaemum (smooth crabgrass). D. sanguinalis has long hairs covering its leaves and has five or six spikelets, while D. ischaemum has no hair and only two or three spikelets. Both species are natives of Europe that became widely