Guizotia abyssinica (L.f.) Cass.
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Authority
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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Family
Asteraceae
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Scientific Name
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Description
Species Description - Scabrous or subglabrous annual to 1 m; lvs sessile and clasping, lance-oblong, acuminate, serrate, to 10 × 3 cm; heads several or many, the disk 1.5 cm wide; outer invol bracts ca 5, ovate or obovate; rays 8–13, broad, 1.5–2 cm; 2n=30. Native of trop. Afr., occasionally adventive in waste places in our range. Sept., Oct.
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Common Names
niger-seed