USDA and ITIS lists 3 varieties all found in eastern WA, Wiki says var. dubius is not recognized.
var. bingenensis: WA, OR
var. dubius: WA, OR
var. subsaccatus: (Suksdorf's Lupine) WA, OR, ID, MT, BC (rare)
No information on what the differences are. BCFlora shows var. subsaccatus with 9 relatively small leaflets.
H&C notes the 9-15 silky hairy leaflets, (hairier on top) that are 2-8 in. long. Petals are blue. Flower on short stalk.
Grows on dry slopes.
east Central Cascades
TRAIL: Umtanum Ridge
HABITAT: Shrub-steppe
ELEVATION: 650 m (2,130 ft.)
BLOOM TIME: 22-APR
