×elyleymus uclueletensis
Plants rhizomatous. Culms 170-235 cm tall, 4-5 mm thick, smooth, mostly glabrous, hairy for 12-15 cm below the spikes, hairs 0.1-0.2 mm. Leaves evenly distributed on the culms; sheaths smooth, glabrous: auricles absent; ligules 0.5-0.7 mm, truncate; blades 6-10 mm wide, smooth, glabrous, abaxial surfaces with the primary veins evident, adaxial surfaces with the primary and secondary veins evident. Inflorescences spikes, 25-35 cm long, about 15 mm thick, with 2 sessile or subsessile spikelets per node; internodes 7-14 mm. Spikelets 14-20 mm excluding the awns, to 25 mm including the awns, with 2-3 florets; disarticulation above the glumes, beneath the florets. Glumes 12-25 mm long including the awns, 0.8-2 mm wide, widest near midlength, flexible, hairy, hairs about 0.4 mm, bases indurate for about 0.3 mm, 3-5 veins evident at midlength, margins about 0.5 mm wide, apices tapering into awns, awns 1-3 mm; lemmas 20-25 mm, hairy, hairs about 0.4 mm, apices awned, awns 2.5-9(11) mm; anthers 2.5-3.5 mm.
Discussion
×Elyleymus uclueletensis comprises hybrids between Leymus mollis and Elymus glaucus. It is known from two locations, near Ucluelet and along Gold River, both on the west coast of Vancouver Island, British Columbia.
Selected References
None.