Leaf margin denticulate, crenulate, rarely entire or subentire; corolla urceolate or tubular, rarely campanulate; anthers with short spurs or not.

• 叶缘具小齿，具细圆齿，很少全缘或近全缘；花冠瓶形的或管状，很少钟状；花药具短距与否。(60