Crepis tectorum L.

• Authority

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

• Family

  Asteraceae

• Scientific Name

  Crepis tectorum L.

• Description

  Species Description - Taprooted annual 1–10 dm; herbage glabrous or puberulent; basal lvs petiolate, with lanceolate to oblanceolate, acute, denticulate to pinnately parted blade to 15 × 4 cm; cauline lvs sessile, auriculate, mostly linear or nearly so; heads several; invol 6–9 mm; inner bracts 12–15, tomentose- puberulent and sometimes also glandular-hispid outside, strigose or puberulent within; outer bracts subulate, a third as long as the inner; fls 30–70; receptacle very finely ciliate; achenes 2.5–4.5 mm, dark purplish-brown at maturity, fusiform, rather strongly attenuate but scarcely beaked, 10-ribbed, the ribs roughened; 2n=8. Native of Eurasia, sparingly established here and there in our range. June, July.