This list is approximate. The scientific names have changed for many of the lupines on this list, with Washington botanists adopting nomenclature different from those in Oregon, so where possible, synonyms have been listed.
Longspur Lupine, Spur Lupine, Spurred Lupine: Lupinus arbustus (Synonyms: Lupinus amabilis, Lupinus arbustus ssp. arbustus, Lupinus arbustus ssp. arbustus var. arbustus, Lupinus arbustus ssp. arbustus var. montanus, Lupinus arbustus ssp. calcaratus, Lupinus arbustus ssp. neolaxiflorus, Lupinus arbustus ssp. pseudoparviflorus, Lupinus arbustus ssp. silvicola, Lupinus arbustus var. montanus, Lupinus argenteus ssp. argenteus var. laxiflorus, Lupinus argenteus var. laxiflorus, Lupinus caudatus, Lupinus caudatus var. submanes, Lupinus caudatus var. subtenellus, Lupinus laxiflorus, Lupinus laxiflorus ssp. laxiflorus, Lupinus laxiflorus var. calcaratus, Lupinus laxiflorus var. cognatus, Lupinus laxiflorus var. elmerianus, Lupinus laxiflorus var. laxiflorus, Lupinus laxiflorus var. lyleianus, Lupinus laxiflorus var. pseudoparviflorus, Lupinus laxiflorus var. silvicola, Lupinus lyleianus, Lupinus mucronulatus var. umatillensis, Lupinus sulphureus var. applegatianus) - Wildflower to three feet high. Leaves compound-palmate (like palm fronds). Flowers blue to purple, claw shaped, with a definite spur or pointed bump at the back of the flower. Flower stems are above the leaves in racemes (flowers come out of stem on all sides).
Kellogg's Spurred Lupine, Tailcup Lupine: Lupinus argenteus var. heteranthus (Synonyms: Lupinus caudatus, Lupinus caucatus var. caudatus, Lupinus hendersonii) -
Bicolored Lupine, Miniature Lupine, Two-color Lupine: Lupinus bicolor (Synonyms: Lupinus bicolor ssp. bicolor, Lupinus bicolor var. bicolor, Lupinus bicolor ssp. microphyllus, Lupinus bicolor var. microphyllus, Lupinus bicolor ssp. tridentatus, Lupinus bicolor var. tridentatus, Lupinus nanus var. apricus, Lupinus vallicola ssp. apricus) -
Common Broad-leaf Lupine: Lupinus latifolius var. latifolius - Wildflower to four feet tall. Leaves compound-palmate (like palm fronds). Flowers blue to bluish-purple, often with a white patch at the base of the upper petals. Flowers irregular with a crab claw-like appearance. Flower stems are above the leaves in racemes (flowers come out of stem on all sides).
Columbia Gorge Broad-leaf Lupine, Suksdorf's Lupine, Thompson's Broad-leaved Lupine: Lupinus latifolius x sericeus var latifolius (Synonyms: Lupinus latifolius ssp. thompsonianus, Lupinus latifolius var. thompsonianus, Lupinus sericeus ssp. sericeus var. thompsonianus, Lupinus sericeus var. thompsonianus, Lupinus suksdorfii) -
Dry Ground Lupine, Prairie Lupine: Lupinus lepidus var. aridus (Synonyms: Lupinus aridus ssp. aridus, Lupinus aridus var. aridus, Lupinus lepidus ssp. aridus, Lupinus volutans) -
Dwarf Lupine, Pacific Lupine: Lupinus lepidus var. lepidus (Synonyms: Lupinus lepidus ssp. lepidus, Lupinus minimus) -
Prostrate Lupine: Lupinus lepidus var. lobbii (Synonyms: Lupinus lyallii var. fruticulosus, Lupinus lyallii var. lobbii, Lupinus lyallii ssp. lyallii, Lupinus lyallii ssp. lyallii var. lyallii, Lupinus lyallii ssp. lyallii var. macroflorus, Lupinus lyallii var. lyallii, Lupinus lyallii var. macroflorus, Lupinus lyallii ssp. minutifolius, Lupinus lyallii var. roguensis, Lupinus lyallii var. villosis, Lupinus minutiflius, Lupinus sellulus var. lobbii) -
Velvet Lupine: Lupinus leucophyllus var. leucophyllus -
Small-flowered Lupine: Lupinus polycarpus (Synonym: Lupinus micranthus) -
Large-leaf Lupine: Lupinus polyphyllus - Wildflower to 4 feet tall. Leaves compound-palmate (like palm fronds). Flowers are blue to bluish-purple, claw-shaped, found above the leaves in racemes (flowers come out of stem on all sides).
Riverbank Lupine, River-bank Lupine, Stream Lupine: Lupinus rivularis (Synonyms: Lupinus amphibius, Lupinus lignipes, Lupinus rivularis var. latifolius) -
Stony-ground Lupine: Lupinus saxosus -
Silky Lupine: Lupinus sericeus -
Bingen Lupine, Whitish Lupine: Lupinus sulphureus var. subsaccatus (Synonyms: Lupinus bingenensis, Lupinus bingenensis var. bingenensis, Lupinus leucopsis, Lupinus leucopsis var. bingenensis, Lupinus sulphureus ssp. subsccatus, Lupinus sulphureus var. bingenensis) -
Whitish Lupine: Lupinus mollis (formerly Lupinus leucopsis or L. sulphureus var. subsaccatus) - Note: This taxon is now included as part of Lupinus sulphureus var. subsaccatus above.
Wyeth's Lupine, Biddle's Lupine: Lupinus wyethii (Synonyms: Lupinus biddlei, Lupinus wyethii ssp. wyethii)
Hybrid Lupine: Lupinus leucophyllus x sericeus ? - Help identify this lupine from the Oregon side of the Columbia River, east of the Deschutes River.