Virginia Tech Weed Identification Guide

Crowfootgrass: Dactyloctenium aegyptium

crowfoot3-19.jpg (196846 bytes) Weed Description:  An annual grass that bends and roots at the lower nodes, with tips that may rise to about 2 feet in height. Found throughout the southern states, northward to Maine, west to Illinois and southern California.

Roots:   Fibrous.

Seedling:  Leaf blades and sheaths are without hair. Leaf margins have long, stiff hairs. Ligule fringed, membranous.

 

Stems:  Bending and rooting at the lower nodes, with tips ascending to 70 cm tall.

Flowers:  1-7 spikes (1.0-6.2 cm long, 3-7 mm wide) at tip of stem. Seed head resembles a crow's foot.

Leaves:  Blades are 2-30 cm long, 2-9 mm wide, without hairs or less often having long, stiff hairs. Leaf margins have hairs that point outward. The ligule is membranous to 1.0 mm long and fringed with hairs (0.8 mm long). Sheaths are without hairs.
Identifying Characteristics:   Entire plant is most often found without hair, except for the hairs that extend outward from the margins and those found on the ligule. Seed head resembles a crow's foot.