Digitaria ischaemum is a species of crabgrass known by the common names smooth crabgrass and small crabgrass.

The prevalent species of Digitaria in North America are Large Crabgrass (D. sanguinalis), sometimes known as Hairy Crabgrass; and Smooth Crabgrass (D. ischaemum).

Digitaria ischaemum is a species of crabgrass known by the common names smooth crabgrass and small crabgrass.

Digitaria ischaemum (I)

Smooth finger-grass (Digitaria ischaemum)

British NVC community OV5 (Digitaria ischaemum - Erodium cicutarium community) is one of the open habitat communities in the British National Vegetation Classification system.