Phylum: Rhodophyta
Class: Florideophyceae
Order: Hildenbrabdiales
Family: Hildenbrandiaceae
Genus and species: Hildenbrandia ruber (Sommerf)
- H. ruber growth on quartz bedrock
- Spotty coverage of rocks by H. ruber in the upper intertidal zone
Description: This plant exists as a thin encrusting layer on rock substrata. Its common name “rust spot” aptly describes this plants appearance.
Habitat: On rocks in the middle and upper intertidal zone, and on ship hulls.
Distribution: Most of Pacific Northwest
The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams. -Ryan Murphy |



