Trees 10(--15)m in native stands; mature crown of sheltered trees broader than tree height, compact in natural sites. Seed cones broader than long, mostly over 13.5cm; umbos mostly more than 6mm, whole umbo curved outward. Seeds to 14mm wide, averaging over 11mm, brown to dark brown with darker mottling.

Dry fogbelt zone, ravines and low ridges; of conservation concern; 130--180m; Calif.

Pinus torreyana subsp. insularis occurs naturally only on Santa Rosa Island, California.