Oral disc 2.5 cm in diameter; brown, greenish, or dull red; with fine longitudinal lines down its column & radiating markings on oral disc; usually with brooded young of different sizes attached to base of column.
Moderately common but patchy; lower mid-intertidal zone to subtidal, usually on sides of rocks or undersides of overhangs, protected outer coast. Sequential hermaphrodite (matures first as female & turns into male at larger size).
Geo Range: Alaska to southern California
Similar species: no other anemone in Monterey broods young externally; young Anthopleura sola are greener, lack fine lines on column and do not brood young around base.