Stems 8 to 24 inches high, erect, pubescent and often branched, from a perennial root. Leaves digitately compound with seven to eleven (usually about eight), oblanceolate, sessile leaflets, blunt and mucronate at the apex, tapering to the base, 1 to 2 inches long, one-fourth to one-half of an inch wide, appressed-pubescent or glabrate; flowers blue, rarely white or pink, in terminal racemes; each flower one-half to two-thirds of an inch long, on pedicels one-fourth to one-half of an inch long; calyx two-lipped; standard (upper petal) orbicular with reflexed margins, wings (two lateral petals) obovate; stamens monadelphous, with two forms of anthers. Fruit a linear-oblong, very hairy pod, 1 ½ to 2 inches long and about one-fourth of an inch wide, with three to six seeds; the two valves of the pod coiling when it dehisces.
Figure XIX Wild or Perennial Lupine (Lupinus perennis Linnaeus)
In dry, sandy soil, Maine and Ontario to Minnesota, Florida, Missouri and Louisiana. Flowering in May and June. This is the only native species of Lupine in New York, although there are about fifty species in the western states.
Memoir 15 N. Y. State Museum
Wild Or Perennial Lupine - Lupinus perennis