Hypochaeris glabra L.
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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 - Taprooted annual or winter-annual, essentially glabrous; stem 1–4 dm, simple or sparingly branched, naked or only sparsely and minutely bracteate; basal lvs oblanceolate, toothed or pinnatifid, 2.5–15 × 0.7–3.5 cm; heads several or solitary, terminating the branches, not very showy, opening only in full sun, the ligules ca equaling the invol and only ca twice as long as wide; invol mostly 8–10 mm at anthesis, up to 17 mm in fr, its bracts imbricate; body of the achenes mostly 4–5 mm, multinerved, the nerves muricate upward; outermost achenes usually beakless, the others with a well developed slender beak; shorter outer pappus bristles commonly merely barbellate; 2n=8, 10, 12. Disturbed and waste places, especially in sandy soil; European weed, intr. in se. U.S., n. to s. Ill.
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Common Names
smooth cat's-ear