Nature School Game Contact Blog Project Noah Facebook Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!
nature school apple icon

Nature School For Teachers - Fall 2020 Launch! visit nature school

Giant Green Anemone

Anthopleura xanthogrammica

Description:

The giant green anemone is one of the most spectacular animals you can find in the tide pools along the Pacific coast. Giant green anemones live on the rocks of tide pools and in deep channels on exposed rocky shores. They can also can be found on concrete pilings in open bays and harbors. From Alaska to Panama, these anemones flourish in the intertidal and subtidal zones. These giant anemones have a green to dark brown column with the tentacles in its crown being a greenish, bluish, or white (never pink at the tips), with no bands or markings. Their tentacles are numerous, short, and conical. This anemone can grow to almost a foot (30 cm.) in height and over nine inches (25 cm.) in diameter. The adults are often crowded together with their tentacles touching, yet the giant green anemone is not aggressive to its neighbors like its smaller relative, the Aggregrate (Cloning) Anemone. These large anemones like to eat detached mussels, crabs, sea urchins and small fishes. Their predators include sea snails and sea spiders.

Species ID Suggestions



Sign in to suggest organism ID

1 Comment

Mark Ridgway
Mark Ridgway 8 years ago

Good spotting and information. Thanks.

Eva Varga
Spotted by
Eva Varga

Oregon, USA

Spotted on Jul 18, 2012
Submitted on Aug 29, 2012

Spotted for Mission

Related Spottings

Aggregating Anemone Green sea anemone Giant Green Anemone Aggregating Anemone

Nearby Spottings

Ochre (Purple or Pacific) Sea Star Acorn Woodpecker (granary) Black Leather Chiton Purple Shore Crab
Noah Guardians
Noah Sponsors