Leaves all basal, simple, petiolate, leaf blade undivided, indistinctly 3-lobed, or rarely 3-partite, margin crenate or entire, 3--5-veined.

• 叶全部基生，单，具叶柄，叶片不裂，不明显3浅裂，或很少3分裂的，边缘具圆齿或全缘，3-5脉。