Whorled pigeon grass

Distinguishing Characteristics
This is an annual loosely tufted grass to 1 metre high usually with stems bent like a knee near the base.
Leaves have a sheath. The leaf stalk is smooth, long and upright with a ligule densely hairy (like eyelashes) and a flat, hairless blade. The base of the leaf stalks are red tinged.
Inflorescence (a group of flowers) is cylindrical and purplish in colour. Bristly seed clusters have short protuding spikes. Seeds are green to purple. One bristle is at the base of each spikelet; the bristle has backward-pointing barbs for attaching to animals and clothing.