Plant Communities:
Valley Grassland
Foothill Woodland
Coastal Prairie

Synonyms:
Trifolium albopurpureum var. albopurpureum
Trifolium albopurpureum var. neolagopus
Trifolium columbianum var. argillorum
Trifolium columbianum
Trifolium helleri
Trifolium macraei var. albopurpureum
Trifolium neolagopus
Trifolium olivaceum var. columbianum
Trifolium olivaceum var. griseum
Trifolium petrophilum