Stems ascending to erect, 20–60 cm. Herbage sparsely hirsute, aromatic. Leaves biternate; leaflets 2–8 cm long, coarsely serrate to lobed. Umbels: peduncles becoming 3–10 cm long; rays ascending, 1–5 cm long; involucral bracts 1 to several, lanceolate, serrate, 5–15 mm long; involucel bracts 3–10 mm long. Flowers white; stylopodium conic. Mericarps sparsely hispid, linear-oblong, 10–15 mm long, concavely narrowed to the tip; style 2–3 mm long, reflexed (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus impatiens
(Colla and Dumesh 2010).