叶无柄或具短叶柄，对5毫米的叶柄；不青春期的花被筒在里面。
Leaves sessile or shortly petiolate, petiole to 5 mm; perianth tube not pubescent inside.
叶互生，具叶柄；叶片卵形到线形，边缘全缘或近全缘。
Leaves alternate, petiolate; leaf blade ovate to linear, margin entire or nearly so.
叶互生，具叶柄，薄革质或纸质，上半部边缘具牙齿，很少全缘，侧脉2或3对，低的离基三出脉。
Leaves alternate, petiolate, thinly leathery or papery, margin dentate in apical half , rarely entire, lateral veins 2 or 3 pairs, lowest triplinerved.
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