This member of the Crassulaceae family was given this name by Nathaniel Lord Britton in 1903. It is found on the four Coronado Islands, out of the northern part of Baja California. It grows in a well drained soil with some water and some to lots of sun. The swollen stem can grow to five centimetres in diameter and 30 centimetres high. The flowers are green to pale yellow , and it can be reproduced both by seeds and offsets.