This week’s plant is Caulanthus amplexicaulis, also known as the claspingleaf wild cabbage. It is endemic to parts of Southern California, where it blooms from May through July. It is another intense soil specialist–one of its subspecies is a serpentine specialist in found in the Santa Rafael Mountains. It is usually found in sloping areas. Its oval, glabrous (smooth) leaves are a strong contrast to many of the other leaves of plants I have shared, which were covered in fine hairs (hirsute).