×pascoleymus

Plants perennial; rhizomatous. Culms to 120 cm, glabrous. Leaves evenly distributed; sheaths open; auricles present; ligules 0.5-1 mm, ciliate; blades 3-10 mm wide, slightly glaucous, long-tapering to the narrowly acute apices, abaxial surfaces scabridulous, glabrous, adaxial surfaces scabrous. Inflorescences distichous spikes, with 2 spikelets per node. Spikelets sessile, with 8-9 florets: disarticulation above the glumes, beneath the florets. Glumes unequal, linear-lanceolate to subulate; lemmas awned, awns shorter than the lemma body; paleas subequal to the lemmas, apices about 0.2 mm wide; anthers about 3.5 mm, indehiscent.

Discussion

×Pascoleymus consists, as its name indicates, of hybrids between Pascopyrum and Leymus. Only one such hybrid has been recognized.

Selected References

Boivin, B. 1967. Enumerations des plantes du Canada VI—Monopsides (2eme partie). Naturaliste Canad. 94: 471-528.

Lower Taxa

×pascoleymus bowdenii