37a. Rhamnus utilis var. utilis
冻绿(原变种) dong lü (yuan bian zhong)
Rhamnus utilis f. glabra Rehder; R. utilis var. multinervis Y. Q. Zhu & D. K. Zang.
Branches terminating in a spine; young branches and annual branches glabrous. Petiole glabrous or subglabrous; leaf blade abaxially pubescent on veins, adaxially glabrous or subglabrous, margin serrulate or crenate-serrate. Pedicels glabrous.
Sparse forests, thickets, mountains, hills, grassy slopes; below 1500 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shanxi, Sichuan, Zhejiang [Japan, Korea].