Bugloss Fiddleneck, Tarweed Fiddleneck: Amsinckia lycopsoides (Synonyms: Amsinckia barbata, Benthamia lycopsoides) - Corolla throat obstructed by tiny hairs. Stamens inserted below the middle of the corolla tube.
Common Fiddleneck, Fireweed, Fireweed Fiddleneck, Ranchers Fiddleneck, Rancher's Fireweed: Amsinckia menziesii var. intermedia (Synonyms: Amsinckia arizonica, Amsinckia demissa, Amsinckia echinata, Amsinckia intactilis, Amsinckia intermedia, Amsinckia intermedia var. echinata, Amsinckia intermedia var. intermedia, Amsinckia microphylla, Amsinckia nana, Amsinckia rigida) - Corolla throat open, not obstructed by hairs. Stamens inserted above the middle of the corolla tube. Herbage of stems with spreading hairs but lacking smaller downwards pointing hairs. Corolla 7-10 mm long, corolla tube well exserted beyond calyx lobes
Harvest Fireweed, Menzie's Fiddleneck, Rigid Fireweed, Small-flowered Fiddleneck: Amsinckia menziesii var. menziesii (Synonyms: Amsinckia hispida, Amsinckia idahoensis, Amsinckia micrantha, Amsinckia parviflora, Amsinckia retrorsa, Amsinckia rugosa, Echium menziesii) - Corolla throat open, not obstructed by hairs. Stamens inserted above the middle of the corolla tube. Herbage of stems with spreading hairs but lacking smaller downwards pointing hairs. Corolla 4-7 mm long. Corolla tube scarcely exerted past the calyx lobes.
Rigid Fiddleneck: Amsinckia retrorsa (now lumped with Amsinckia menziesii var. menziesii) - Corolla throat open, not obstructed by hairs. Stamens inserted above the middle of the corolla tube. Herbage of stems with both spreading hairs as well as appressed hairs pointing downwards (viewed with handlens). Corolla 5-8 mm long with the corolla tube about equal to the calyx lobes.
Bristly Fiddleneck, Devil's Lettuce, Tesselate Fiddleneck: Amsinckia tessellata var. tessellata (Synonyms: Amsinckia densirugosa, Amsinckia hendersonii, Amsinckia washingtonensis) -