长舌落芒草 chang she luo mang cao

Oryzopsis aequiglumis var. ligulata P. C. Kuo & Z. L. Wu, Acta Phytotax. Sin. 19: 435. 1981.

Ligule long-lanceolate, 8–13 mm. Spikelets 4.9–5.2 mm; lemma ca. 4 mm, pilose with ca. 0.4 mm hairs, constricted at awn junction; awn readily deciduous, 7–8 mm. Fr. Sep.

* Near rocks of rivers, moist ground; 1800–2800 m. Yunnan (Lijiang).

This taxon appears to be a local element from the Piptatherum aequiglume-munroi species group. The glumes clearly exceed the lemma, and the delicate, caducous awn with constricted disarticulation point are indicative of P. munroi, but glume shape is nearer P. aequiglume. The ligule is remarkably long, and lemma pubescence is longer than in either species. It may prove to merit separate specific status when better known.