对具绵状毛的至少沿脉被微柔毛的叶片和叶柄；花药球状的或肾形。
Leaf blade and petioles puberulent to woolly at least along veins; anthers globose or reniform.
有稀少似羊毛的绒毛层的小枝；叶背面脉具白色的毛和具具稀疏蛛丝状毛。
Branchlets with sparse woolly tomentum; abaxial veins of leaves with white hairs and with sparse arachnoid tomentum.
叶密被长硬毛背面的特别是在脉上。花对生。显著被微柔毛有环的花冠筒在里面。
Leaves densely hirsute especially on veins of abaxial surface. Flowers opposite. Corolla tube conspicuously puberulent annulate inside.
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