Common Fiddleneck, Fireweed Fiddleneck, Rancher's Fireweed: Amsinckia intermedia (Synonyms: Amsinckia intermedia var. intermedia, Amsinckia menziesii var. intermedia) - This is considered part of Amsinckia menziesii in Oregon.
Bugloss Fiddleneck, Tarweed Fiddleneck: Amsinckia lycopsoides -
Harvest Fireweed, Menzies' Fiddleneck, Rigid Fireweed, Small-flowered Fiddleneck: Amsinckia menziesii (Synonyms: Amsinckia menziesii var. menziesii, Amsinckia micrantha, Amsinckia retrorsa) -
Harvest Fiddleneck, Rigid Fiddleneck: Amsinckia retrorsa - This considered as part of Amsinckia menziesii in Oregon.
Seaside Amsinckia, Seaside Fiddleneck, Woolly Breeches: Amsinckia spectabilis var. spectabilis (Synonym: Amsinckia scouleri) -