[oaks.of.the.world.free.fr] Range, Description: Range American mainland, in front of California Channel Islands (San Luis Rey, San Diego County), at less than 1600m above sea level; Growth habit Small shrub less than 6 to 10 m tall Leaves 2 to 6 cm, evergreen, oboval, margin wavy more than toothed, light dull green and glabrous above, hairy beneath but becoming glabrous when older, with petiole 3 to 7 mm; Fruits acorn 2 to 2.5 cm, enclosed in warty cup, maturing in 1 year; cotyledons sometimes connate. (link added by Mary Ann Machi)