Davy's Gumplant, Hairy Gumweed: Grindelia hirsutula (Synonyms: Grindelia camporum, Grindelia hirsutula var. davyi) -
Willamette Valley Gumweed, Puget Sound Gumplant, Puget Sound Gumweed, Willamette Valley Gumweed: Grindelia integrifolia (Synonyms: Grindelia integrifolia var. integrifolia, Grindelia nana var. integrifolia) -
Willamette Hybrid Gumplant, Willamette Valley Hybrid Gumplant: Grindelia integrifolia x Grindelia nana var. nana -
Coastal Gumweed, Columbia Gumplant: Grindelia nana var. discoidea (Syonyms: Grindelia columbiana, Grindelia nana ssp. columbiana)
Idaho Gumweed, Low Gumweed: Grindelia nana var. nana (Synonyms: Grindelia nana ssp. nana, Grindelia nana var. integerrima,) -
Coastal Gumweed, Oregon Gumplant, Oregon Gumweed: Grindelia stricta var. stricta (Synonyms: Grindelia arenicola, Grindelia integrifolia var. macrophylla, Grindelia stricta ssp. stricta) -