1.Shrublets pulvinate, usually thorny; leaves alternate, crowded, linear, sometimes spinescent, persisting when withered.
小灌木垫状，通常多刺；叶互生，密集，线形，有时，坚持说什么时候枯萎。
2.teeth semicircular to circular, stellate puberulent, apex spinescent-acuminate.
对圆，星状微柔毛半圆的齿，先端具刺渐尖。
3.Leaf blade membranous, oblong-ovate or ovate-orbicular, margin crenate to serrate; terminal bud not spinescent .
叶片膜质，长圆状卵形的或卵形圆形，对有锯齿的边缘具圆齿；顶芽不具刺。
4.Corolla campanulate, lobes shorter than tube; seed coat irregularly short spinescent .
花冠钟状，裂片短于筒部；不规则的种皮短具刺。
5.Shrubs or trees, usually spinescent, rarely unarmed, with terminal scaly buds and axillary buds.
灌木或乔木，通常具刺，很少无刺，具顶生鳞芽和腋生芽。
6.lobes of basal leaves with 2 or more triangular lobules, short spinescent, glabrous, dusty glandular.
或更多裂片的基生叶具2三角形小裂片，短，无毛，布满灰尘具腺。
7.Shrubs scandent or erect, rarely small trees, unarmed or spinescent.
攀缘灌木或直立，很少小乔木，无刺或具刺。
8.lower lip 2 toothed, teeth narrower, apex acuminate to spinescent, sometimes approximate.
狭窄下唇2齿，齿，对具刺，有时紧靠的先端渐尖。
9.Glumes and lemma glabrous, rarely laxly spinescent hairy.
颖片和外稃无毛，很少稀松的有毛。
10.Plants densely pilose throughout. Calyx teeth ovate-lanceolate, spinescent, conspicuously reflexed. Corolla ca. 1. 2 cm.
全部的植株密被柔毛。萼齿卵状披针形，具刺，显著反折。花冠约1.2厘米。