Cauline leaves petiolate or sessile, base cuneate, attenuate, auriculate, sagittate, or amplexicaul, margin entire, dentate, or lobed.

• 茎生叶具叶柄或者无柄，基部楔形，稀释，耳形，箭头形，或者抱茎，边缘全缘，有齿，或者有叶。