Annual 3-10 dm, strigose to hirsutulous; lvs resinous-dotted beneath, ovate or deltoid, coarsely toothed, 4-12 נ2-7 cm, the petiole to half as long, with slender base and upwardly expanding wing-margins; heads rather numerous in small cymose clusters ending the branches; disk under 1 cm wide; invol very conspicuously stipitate-glandular, the loose outer bracts 5-15 mm; rays short and inconspicuous, yellowish or dirty white; achenes 3-3.5 mm; 2n=30. Waste places; native of e. Asia, sparingly intr. in our range. Summer.

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

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