The caudal peduncle is very slender and includes three sets of keels.

尾端的花梗很细，包括三组龙骨。

A supporting stalk, such as a peduncle or pedicel.

叶梗支撑的梗，如花梗或小花梗。

Single light-medium blue, three or more per peduncle.

单瓣亮到中蓝色花，每支花梗开3朵或更多的花。

Single small dark purple, 5-8 per peduncle, very floriferous.

单瓣暗深紫色小花，每支花梗开5 - 8朵花，非常会开花。

Single pale-medium blue, one per peduncle, difficult to bloom.

单瓣花，浅到中蓝色，每个花梗有1朵花，很难开花。