Greenbark Ceanothus
Ceanothus spinosus
Ceanothus spinosus is a species in the Rhamnaceae (Buckthorn) family known by the common names greenbark ceanothus and redheart. It is native to the coastal strip of southern California south of San Luis Obispo County to northern Baja California, where it grows in the scrub and chaparral of the coastal mountain ranges. This is a large treelike shrub approaching six meters in maximum height. The stem is a rough-barked trunk near the base and has thorny, greenish-brown branches. The thick, firm evergreen leaves are up to 4 or 5 centimeters long and are hairless on the upper surface but sometimes lined with hairs underneath. The shrub blooms in flower clusters up to 15 centimeters long filled with clusters of white to pale blue flowers. The fruit is a smooth, round capsule about half a centimeter wide containing 3 seeds.
