Glabrous biennial to 1 m; lfls ovate, pinnately dissected into linear segments 5-15 mm; peduncles 5-13 cm; rays 7-14, ascending, 2-4 cm; pedicels ascending, 1-12 mm; involucel wanting or nearly so; fr 3-4.5 mm, half as wide, prominently ribbed; 2n=20. Native of Eurasia, sometimes cult. and often established as a weed in waste places; Nf. to B.C., s. to Va., Ind., and Mo., commoner northward. June-Aug.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.

From Flora of Indiana (1940) by Charles C. Deam

Cultivated for its aromatic seed which are used as a condiment. Sparingly escaped.

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Indiana Coefficient of Conservatism: C = null, non-native

Wetland Indicator Status: FACU

Diagnostic Traits: glabrous biennial with tuberous roots; leaves pinnately dissected with linear segments; primary rays mostly 8-14; petals white; fruits oblong-ovoid, strongly ribbed.