Capsule valves spirally twisted or seldom straight, if straight leaf blade abaxially woolly, pannose, or velutinous, hairs dense, interwoven, usually branched.

• 螺旋的蒴果裂爿扭曲或很少直，如果具绵状毛的直叶片背面，，或茸毛，紧密的毛，交织，通常分枝。(61