Pascopyrum smithii

Family: Poaceae
Common Name: western wheatgrass
Symbol: PASM
Description: Culms 20-100 cm, glabrous. Auricles 0.2-1 mm, often purple; ligules about 0.1 mm; blades 2-26 cm long, 1-4.5 mm wide, decreasing in length upwards, adaxial surfaces with prominent veins. Spikes 5-17 cm. Spikelets 12-26(30) mm, with 2-12 florets; lowest rachilla internodes in each spikelet 0.8-2 mm long, 0.5-0.9 mm wide at the top. Glumes 5-15 mm, lower glumes usually exceeded by the upper glumes; lower glumes 0.15-0.8 mm wide at 3/4 length; lemmas 6-14 mm, unawned or awned, awns 0.5-5 mm. SEINet Portal Network. 2020. http//:swbiodiversity.org/seinet/index.php. Accessed on November 02.