Leaf blade usually undivided, rarely obscurely 3-lobed, linear, margin acutely dentate. Sepals usually bluish violet, vein anastomoses absent. Staminodes absent.

• 叶片通常不裂，3浅裂，线形的不明显的很少，尖锐具牙齿的边缘。通常的萼片带蓝色的紫色，无网结脉。退化雄蕊缺席。