Malacothamnus clementinus is a rare species of flowering plant in the mallow family known by the common name San Clemente Island bushmallow.

[1] The plant became a federally listed endangered species in 1977 when it was limited to a single population nearing extinction due to herbivory by the feral goats which once infested the small island.

[3] Since the Navy removed goats from the island in the 1990s and started an intensive management program this species has recovered significantly.

It bears rounded dark green leaves several centimeters long which are divided into sharp lobes.

The inflorescence is a spikelike cluster of a few pale pink, lavender, or nearly white flowers with somewhat lance-shaped, hairy petals several millimeters long.