Tanbark Oak, Tanoak                lith-o-KAR-pus des-i-FLO-rus

• Broadleaf evergreen tree/shrub, 20-30(90) ft [6-9(27) m] high, varying from narrow and conical to broad and rounded, sometimes a shrub, less than 10 ft (3m).   Leaves oblong, 6-13 cm long, 2-6 cm wide, thick, leathery, wavy-toothed border, shiny light green, whitish beneath.  Acorns egg-shaped, 2-3 cm long, shallow saucer-shaped cup, covered with dense bristles.
• Sun or partial shade, very shade tolerant.  Best in rich, moist soil. Stands some drought when established.  One of the few evergreen, broad-leaved trees for the Willamette Valley.
• Hardy to USDA Zone 7      Native range from southwest Oregon (Cascade Mountains through the Kalamath Mountains) to southern California.
• Lithocarpus: from Greek lithos, stone, and karpos, fruit, alluding to the hard fruit (acorn).   densiflorus: densely flowered
• Its acorns are oak-like but is flowers are like those of chestnuts or chinkapins.  Native Americans removed the shells of the acorn, washed the seeds in hot water to remove the tannins, and then ground them into flour.
• Oregon State Univ., Peavy Arboretum.