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Rhodophyta · Red Seaweed

Dilsea californica

(J.Agardh) Kuntze
Phylum
Rhodophyta
Class
Florideophyceae
Order
Gigartinales
Family
Dumontiaceae

Dilsea californica

California red blade

Authority
(J.Agardh) Kuntze
Thallus is a spatulate (tongue-shaped) to wedge-shaped, often lacerated, leathery blade with short stipe, reddish-brown to maroon, to ~10 cm (4 in) tall, growing singly or in clusters. The blade is not slippery and can be slightly wrinkled near the base.

Habitat

This species is primarily found on low intertidal bedrock or rock emerging from sand on semi-exposed shores.

North Pacific Distribution

Alaska Peninsula, Alaska to central California.

Former scientific names

Sarcophyllis californica

Similar taxa

Schizymenia pacifica looks similar but is usually larger, more of an orange-red in color, and very slippery.

References

Photos