Bitter Fleabane: Erigeron acris var. kamtschaticus (Synonyms: Erigeron acris ssp. politus, Erigeron acris var. asteroides, Trimorpha acris var. asteroides, Trimorpha acris var. kamtschatica) -
Alice Eastwood's Fleabane, Alice's Fleabane, Eastwood's Daisy, Eastwood's Fleabane: Ergeron aliceae -
Annual Fleabane, Eastern Daisy Fleabane, Sweet Scabrous Erigeron: Erigeron annuus -
Golden Daisy, Golden Fleabane, Alpine Yellow Fleabane: Erigeron aureus (Synonyms: Erigeron aureus var. acutifolius, Erigeron brandegeei) -
Bloomer's Fleabane, Waldo Daisy: Erigeron bloomeri var. nudatus -
Cascade Daisy, Horseweed: Erigeron cascadensis -
Dwarf Yellow Fleabane, Golden Daisy, Golden Fleabane: Erigeron chrysopsidis var. chrysopsidis (Synonym: Erigeron chrysopsidis ssp. chrysopsidis)
Cutleaf Daisy, Dwarf Mountain Fleabane, Fernleaf Fleabane, Trifid Mountain Fleabane: Erigeron compositus (Synonyms: Erigeron compositus var. compositus, Erigeron compositus var. discoideus, Erigeron compositus var. glabratus) -
Foothill Daisy, Longleaf Fleabane: Erigeron corymbosus -
Diffuse Daisy, Spreading Fleabane: Erigeron divergens (Synonyms: Erigeron divergens var. divergens) -
Eaton's Lavender Daisy: Erigeron eatonii var. lavandulus -
Eaton's Plantain-leaved Fleabane, Plantain-leaved Daisy: Erigeron eatonii var. plantagineus (Synonyms: Erigeron decumbens ssp. robustior, Erigeron decumbens var. robustior) -
Eaton's Shaggy Fleabane, Eaton's Shaggy Daisy: Erigeron eatonii var. villosus (Synonym: Erigeron eatonii ssp. villosus) -
Blue Dwarf Fleabane, Volcanic Daisy: Erigeron elegantulus -
Peck's Threadleaf Fleabane, Threadleaf Fleabane: Erigeron filifolius (Synonyms: Erigeron filifolius var. filifolius, Erigeron filifolius var. robustior)
Leafy Fleabane: Erigeron foliosus var. confinis (Synonym: Erigeron foliosus var. hartwegii) -
Foreign Daisy, Subalpine Daisy, Peregrine Fleabane: Erigeron glacialis var. glacialis (Synonyms: Erigeron callianthemus, Erigeron peregrinus, Erigeorn peregrinus ssp. callianthemus, Erigeron peregrinus ssp. callianthemus var. callianthemus, Erigeron peregrinus var. angustifolius, Erigeron peregrinus var. callianthemus, Erigeron peregrinus var. eucallianthemus, Erigeron peregrinus var. scaposus, Erigeron ursinus) -
Howell's Daisy, Howell's Fleabane: Erigeron howellii (Synonym: Erigeron salsuginosus var. howellii)
California Rayless Daisy, Unadorned Fleabane: Erigeron inornatus var. inornatus - Rayless.
Leiberg's Fleabane: Erigeron leibergii -
Yellow Desert Daisy, Desert Yellow Daisy, Desert Yellow Fleabane, Lineleaf Fleabane: Erigeron linearis (Synonyms: Diplopappus linearis, Erigeron peucephyllus) -
Spear-leaved Fleabane, Short-rayed Daisy, Short-rayed Fleabane: Erigeron lonchophyllus (Synonyms: Erigeron acris ssp. racemosus, Trimorpha lonchophylla) -
Northern Daisy: Erigeron nivalis (Synonyms: Erigeron acris, Erigeron acris ssp. debilis, Erigeron acris var. debilis, Trimorpha acris var. debilis) -
Philadelphia Daisy, Philadelphia Fleabane: Erigron philadelphicus (Synonym: Erigeron philadelphicus var. philadelphicus) -
Shaggy Fleabane: Erigeron pumilus var. intermedius (Synonyms: Erigeron pumilus ssp. intermedius, Erigeron pumilus var. euintermedius, Erigeron pumilus var. gracilior) -
Salish Daisy, Salish Fleabane, Star Peak Fleabane: Erigeron salishii -
Aspen Fleabane, Showy Daisy, Showy Fleabane, Splendid Fleabane, Threenerve Fleabane: Erigeron speciosus (Synonyms: Erigeron conspicuus, Erigeron macranthus, Erigeron speciosus var. conspicuus, Erigeron speciosus var. macranthus, Erigeron speciosus var. speciosus, Erigeron speciosus var. typicus, Erigeron subtrinervis, Erigeron subtrinervis ssp. conspicuus, Erigeron subtrinervis var. conspicuus, Stenactis speciosa) - Includes Erigeron subtrinervis var. conspicuous in Oregon.
Branching Daisy, Daisy Fleabane, Prairie Fleabane, Rough-stemmed Daisy: Erigeron strigosus var. strigosus (Synonyms: Erigeron annuus ssp. strigosus, Erigeron strigosus var. septentrionalis) -
Three-nerve Daisy, Threenerve Fleabane, Triple Nerved Fleabane, Triple Nerved Daisy: Erigeron subtrinervis var. conspicuous (This is considered Erigeron speciosus var. speciosus in Oregon) -