Left plant is a powder-dusted variant of Dudleya virens, right plant is a small form of Dudleya candida.

These are very similar clumping plants found on islands off the coast of southern California and northern Baja California, respectively. But the flowers on the left plant are "open" (petals point sideways), and the flowers on the right plant are "closed" (tubular, petals point up). Depending on the exposure and the care, they may be difficult to distinguish until they flower. Both "open" and "closed" flowers seem to be equally delectable to hummingbirds.

A closer relative of D. candida actually seems to be the mainland species D. brittonii, which also has tubular flowers.



The natural hybrid D. x semiteres is actually either one of those plants (depending on the location) hybridized with the open-flowered D. attenuata orcutti.

Dudleya x semiteres