Basal leaves 3 or 4, not wilting at anthesis. Cauline leaves 2--4, near stem base, petioles of cauline ones sheathed. Sepals blue-purple.

• 基生叶3或4，不使在花期凋谢。茎生叶2-4，靠近茎基部，茎生的叶柄具鞘；萼片蓝紫色。