1·Leaves alternate, petiolate; leaf blade ovate to linear, margin entire or nearly so.
叶互生,具叶柄;叶片卵形到线形,边缘全缘或近全缘。
2·Leaf blade with both surfaces scaly, scales entire, or lobed.
叶片具两面有鳞的,全缘的鳞片,或浅裂的。
3·Leaf blade and petioles puberulent to woolly at least along veins; anthers globose or reniform.
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。
4·Leaf blade veins forming square tessellation.
叶片脉形成广场棋盘花纹。
5·Leaf blade base broadly cuneate to rounded, margin obtusely serrate; drupe and endocarp ellipsoid to oblong.
叶片基部宽楔形到圆形,边缘钝锯齿;核果和内果皮椭圆形的到长圆形。