Caulanthus amplexicaulis is a species of flowering plant in the family Brassicaceae known by the common name claspingleaf wild cabbage.
It is endemic to California, where it grows on open slopes in the Transverse Ranges and Outer South California Coast Ranges.
Caulanthus amplexicaulis is an annual herb growing up to 44inches tall.[1]
The bulbous purple flower forms a rounded pouch which opens at the top, with the narrow petal tips reflexed back. The outer petal tips are deep purple; the inner tips are much lighter and can be nearly white.
The fruit is a very long silique which may exceed 10 centimeters in length.
There are two varieties of this species.