Native of Asia and southern Europe. Annual. C4.
It is a common weed of gardens, nature strips, and disturbed land. It grows prolifically in summer. It differs from most windmill grasses in that the radiating arms are usually slightly offset.
Digitatus: with fingers; sanguinalis: of blood red colour, as in photo L2.
1. Summer Grass (Castlemaine). The spikelets are pressed aginst the arms and without awns.
2: The radiating arms are offset. 3,4: The stems and flower sprays redden as they mature. Castlemaine.