Gelidium robustum (Gardner) Hollenberg & Abbott
Phylum Rhodophyta, Class Florideophyceae, Order Gelidiales, Family Gelidiaceae
Thallus to 40 cm tall, flattened cylinder in cross section; side branches arise from distinct main axis with ultimate branchlets usually >1 mm wide; rose to dark red.
Common, low intertidal zone to subtidal; protected outer coast.
Geo Range: northern California to northern Baja
Similar species: Gelidium coulteri occurs higher on the shore & is much more delicate & finely branched.
Image: Rhodymenia pacifica (down rt side), hydroid Aglaophenia (lower rt), Corallina (lower left)