Configuration feature: Erect or twine a cane this, do not have stipule or stipular and alar as accrete as Xie Bing. 形态特征： 竖立或缠绕藤本,无托叶或托叶翅状并与叶柄合生。
A minute stipular sheath around the secondary divisions of the inflorescence in some members of the Polygonaceae. 托叶鞘 Ocreola (pl.;ocreolae) 某些蓼科植物中，围绕花序次级分枝的托叶状小鞘。
Branchlets green, pale brown when dry, 2-5 mm thick, without ringlike stipular scars, glabrous. 小枝绿色的，干燥时的淡褐色，2-5毫米厚，没有环形的托叶的痕，无毛。
Branches with stipular spines. Drupe large, 1.5-2 cm in diam.; mesocarp sweet-tasting; stone acute at both ends. Fr. Aug-Oct. 分枝具托叶刺。核果大，直径的1.;5-2厘米；中果皮甜；在两末端锐尖的核。果期8月10月。
