Typically found in rocky intertidal zones and shallow subtidal areas.
Distribution
Native to the Pacific coast of North America, from Alaska to Baja California.
Conservation status
Least Concern
Edibility
Not generally consumed and not regarded as an edible species. Do not collect or handle it; its stinging cells can cause irritation.
Danger level
Caution
Usual observation depth
3–30 m
Behaviour
Sessile and colonial corallimorph. Individuals reproduce asexually and can form extensive clonal groups. The tentacles extend for feeding and contract when disturbed; feeding is particularly effective when plankton-rich water flows over the colony.
Observation zones
Rocky reef, kelp forest, wall, boulder field, dock or pilings, and shaded overhang; usually on hard substrate rather than sand or in open water.
Diet
Captures zooplankton and small drifting invertebrates with its stinging tentacles; it can also seize very small suspended animal prey.
Reproduction
Oviparous
Identification marks
Small animal resembling an anemone, brightly colored, often pink, red, orange, purple or white. It has short tentacles ending in rounded clubs, often of contrasting color, and is frequently found in dense colonies.
Similar species
It can be confused with other Corynactis species or with small sea anemones. The rounded, club-shaped tentacle tips and dense mat-like colonies are useful clues. The larger Anthopleura anemones generally have longer, non-swollen tentacles and a more visible column.
Approach rules
Observe without touching, collecting, moving, or feeding. Maintain good buoyancy and fin control to avoid any contact with the colony. Avoid using flash at very close range and never manipulate the tentacles for a photo.
Protection
It is currently not assessed by a global assessment on the IUCN Red List. No CITES listing is known. General advice: avoid collection and any physical disturbance, and comply with the rules specific to protected areas where applicable.
