Variation
var. planifolia 	Flat Leaf Summer Holly
This shrub is similar to the species with an upright or branched growth that forms a bushy habit and is naturally found growing in coastal chaparral from the northern Channel Islands to the southern Channel Islands. It has oblong to obovate leaves that are flat (not recurved) and the longer inflorescence appears during spring. It is not commonly cultivated and may be difficult to obtain requiring a specialist nursery.