Softly hairy annual or biennial to nearly 1 m tall. Leaves with hairy sheaths the blade hairy, to 7 mm wide. Inflorescence compact, 2-15 cm long. Spikelets thick, lanceolate in outline. Lemmas with straight awns. Glumes pointed and ridged, lower 3-5 nerved, upper 7-nerved; spring.

Eurasia

A mostly cool climate weed of gardens and disturbed sites.

 

B. diandrus Roth is sometimes found as a garden weed.

Source: Spencer, R.; Aldous, D.; Stajsic, V.; McGeary, D (2005). Poaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.