Inodorous; styles at anthesis shorter than the pet, in fr nearly straight and parallel, 1.2-1.5 mm; mericarps 15-22 mm; bractlets several, linear- attenuate, reflexed, 3-8 mm; 2n=22. Moist woods; Que. and N.S. to Sask., s. to N.C., Ala., and Ark., commoner n. and e. May, June. (Washingtonia c.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Frequent throughout the state except in the southwestern counties. In moist or dry woods of all kinds except in very sandy places.
Indiana Coefficient of Conservatism: C = 3
Wetland Indicator Status: FACU
Diagnostic Traits: perennial, roots scarcely aromatic; stems at least thinly villous; stipules with ciliate margin; leaves 2-3 ternately compound, the leaflets ovate and dentate; flowers white, fewer than 10 per umbellet; fruits clavate, 1+ cm long; styles less than 1.6 mm long.