Leaves linear to orbicular or obovate, apex rounded to long acuminate, very rarely truncate to retuse; corolla lobes valvate; stigma head discoid, 5-angled, shorter than anther appendages.

• 叶线形到圆形或倒卵形，先端圆形的到长渐尖，极少截形到微凹；花冠裂片镊合状；盘状的柱头头状花序，具5个角，短于花药附属物。(13