Leaf blade usually undivided, rarely obscurely 3-lobed, oblanceolate, margin obtusely dentate. Sepals usually bluish violet, vein anastomoses absent. Staminodes occasionally present.

• 叶片通常不裂，很少不明显3浅裂，倒披针形，边缘钝牙齿。通常的萼片带蓝色的紫色，无网结脉。退化雄蕊偶有宿存。