如昆早熟禾 ru kun zao shu he

Lemma surfaces and intermediate veins glabrous or sparsely pubescent.

Sporadic at low elevations. Guangdong, Shandong, Zhejiang [Japan (Okinawa)].

It is not uncommon to find plants of Poa acroleuca in China with glabrous or nearly glabrous lemmas. The range of such plants, recently named from Okinawa as var. ryukyuensis, has not yet been fully documented. These can be confused with P. hisauchii, except that in that species the panicles are narrow with short, erect or ascending branches, and the anther to lemma length ratio is less than 1:5 (vs. 1:5–2:5); or with P. nepalensis, except that in that species all ligules are pilulose and the paleas are pilulose to the apex.