Tapertip Hawksbeard, Long-leaved Hawksbeard: Crepis acuminata (Synonyms: Crepis acuminata ssp. acuminata, Crepis acuminata ssp. typica, Psilochenia acuminata) -
Slender Hawksbeard: Crepis atribarba ssp. atribarba (Synonyms: Crepis atribarba ssp. cytotaxonomicorum, Crepis atribarba ssp. typicus, Crepis atribarba var. cytotaxonomicorum, Psilochenia atribarba) -
Baker's Hawksbeard, Cusick's Hawksbeard, Idaho Hawksbeard: Crepis bakeri (Synonyms: Crepis bakeri ssp. bakeri, Crepis bakeri ssp. cusickii, Crepis bakeri ssp. idahoensis, Psilochenia bakeri, Psilochenia bakeri ssp. cusickii, Psilochenia bakeri ssp. idahoensis) -
Bearded Hawksbeard, Slender Hawksbeard: Crepis barbigera (Synonym: Crepis atribarba ssp. originalis) -
Smooth Hawksbeard: Crepis capillaris (Synonym: Crepis capillaris var. capillaris) -
Limestone Hawksbeard, Gray Hawksbeard, Intermediate Hawksbeard: Crepis intermedia (Synonym: Psilochenia intermedia) -
Low Hawksbead, Modoc Hawksbeard, Siskiyou Hawksbeard: Crepis modocensis (Synonyms: Crepis modocensis ssp. modocensis, Crepis modocensis ssp. subacaulis, Crepis modocensis var. modocensis) -
Mountain Hawksbeard, Siskiyou Hawksbeard: Crepis monticola -
Dwarf Alpine Hawksbeard, Low Hawksbeard, Tiny Hawksbeard: Askellia pygmaea ssp. ramosa (Synonyms: Askellia nana ssp. ramosa, Crepis nana ssp. ramosa, Crepis nana var. ramosa) -
Largeflower Hawksbeard, Western Hawksbeard: Crepis occidentalis (Synonyms: Crepis occidentalis ssp. conjuncta, Crepis occidentalis ssp. costata, Crepis occidentalis ssp. occidentalis, Crepis occidentalis ssp. pumila, Crepis occidentalis var. costata) -
Naked-stemmed Hawksbeard: Crepis pleurocarpa
Dandelion Hawksbeard, Meadow Hawksbeard: Crepis runcinata ssp. hispidulosa (Synonym: Crepis runcinata var. hispidulosa) -
Imbricate Hawksbeard, Alvord Hawksbeard: Crepis runcinata ssp. imbricata (Synonym: Crepis runcinata var. imbricata) -