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FOC | Family List | FOC Vol. 22 | Poaceae | Elymus

79. Elymus hondae (Kitagawa) S. L. Chen, Bull. Nanjing Bot. Gard. 1987: 9. 1988 [“hondai”].

本田披碱草 ben tian pi jian cao

Roegneria hondae Kitagawa, Rep. Inst. Sci. Res. Manchoukuo 6(4): 118. 1942 ["hondai"]; R. hondae var. fascinata Keng.

Culms 70–100 cm tall, glabrous. Leaf sheath glabrous, or retrorsely pilose at base of innovation shoot; leaf blade 13–20 × 0.3–0.9 cm, abaxial surface smooth, subglabrous, adaxial surface scabrous, hispid along veins. Spike lax, 15–20 cm. Spikelets 1 per node, purplish green, ca. 16 mm excluding awns, with ca. 5 florets. Glumes lanceolate, scabrous along veins, apex acuminate or pointed; proximal glume 7–10 mm, 3–5-veined; distal glume 8.5–11 mm, 4–6-veined. Lemma scabrous, with a tooth below apex on one or both sides; first lemma ca. 10 mm; callus with hairs ca. 5 mm; awn straight, 15–25 mm. Palea slightly shorter than lemma, ciliate along keels distally, puberulent between keels distally, apex obtuse or emarginate. Fl. and fr. Jul–Aug. 2n = 28*.

* Mountain slopes. Hebei, Henan, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi.


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