Hordeum L. >

Spikelets with 1 floret, in clusters of 3 at each node. Glumes linear, awn-like (Fig. 50) Hordeum
Rhachis fragmenting at maturity
Leaves without auricles. Inflorescence 2–4 cm long. Spikelets spreading, especially when dry, less than 2 cm long (including the awns). Glumes of the lateral spikelets bristle-like. Annual up to 20 cm high. Widespread. Weed of cultivation, pastures and waste places. Introd. from Europe. Fl. winter. Barley Grass Hordeum hystrix