Bluntseed Sweetroot

Osmorhiza obtusa (Coult. & Rose) Fernald, Rhodora4; 154. 1902.
Washinglonia obtusa Coult. & Rose, Contr. U. S. Nat. Herb. 7: 64. 1900.
Plants slender, 15-65 cm. high, the foliage and younger portions hispid or hispidulous or glabrate; leaves orbicular in general outline, excluding the petioles 4-11 cm. long, biternate or ternate-pinnate, the leaflets broadly lanceolate to ovate, 1.5-5 cm. long, 1-3 cm. broad, obtuse or acute, coarsely serrate, incised or lobed, the leaflets and rachis sparingly hispid or hispidulous; petioles 3-20 cm. long; peduncles 5-15 cm. long, often divergent; involucre wanting, or often of a foliaceous bract; involucel wanting; rays 2-5, widely divergent or some reflexed, 2-7 cm. long; pedicels 2-5, widely divergent, 10-30 mm. long; flowers greenish-white, the styles minute; fruit clavate, 10-15 mm. long, obtuse or abruptly acute at the apex, caudate and densely hispid at the base.
■ Type locality: Ishawood Creek, northwestern Wyoming, Rose 476.
Distribution: Labrador; Quebec; Montana and British Columbia to eastern Washington, south to Colorado, Utah, Nevada, and Arizona. (Baker 240. Leiberg S55.)

Osmorhiza depauperata is a species of flowering plant in the carrot family known by the common names bluntseed sweetroot and blunt-fruited sweet-cicely.