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Hypochaeris radicata L.  
Family: Asteraceae
Hairy Cat's-Ear, more...common cat's ear, false dandelion, frogbit, spotted cat's ear
Hypochaeris radicata image
Paul Rothrock
  • FNA
  • Gleason & Cronquist
  • Indiana Flora
  • Resources
David J. Bogler in Flora of North America (vol. 19, 20 and 21)
Perennials, 10-60 cm; taproots vertical, thick, fibrous, caudices woody. Stems (1-15) erect, usually branched (2-3 times at mid­stem and distally, sparsely bracteate or naked), glabrous or coarsely hirsute proximally. Leaves all basal; blades oblanceolate, lyrate to slightly runcinate, 50--350 × 5-30 mm, margins coarsely dentate to pinnatifid, faces ± hirsute (hairs coarse, spreading). Heads usually 2-7 in loose arrays, sometimes borne singly. Involucres cylindric or campanulate, 10-25 × 10-20 mm. Phyllaries 20-30, narrowly lanceolate, 3-20 mm, unequal, margins scarious, green to darkened, faces glabrous or sparsely hirsute medially. Florets 10-15 mm, surpassing phyllaries at flowering; corollas bright yellow or grayish green. Cypselae monomorphic, all beaked, beaks 3-5 mm; bodies golden brown, fusiform, 6-10 mm, ribs 10-12, muricate; pappi of whitish bristles in 2 series, outer barbellate, shorter than plumose inner, longest 10-12 mm. 2n = 8. Flowering Apr-Nov. Oak-pine forest, coastal prairie, dunes, waste ground, dry fields, roadside ditches, railroads, lawns; 0. 1600 m; introduced; B.C., Nfld. and Labr. (Labr.). Ala., Alaska, Ark., Calif., Colo., Conn., Del., Fla., Ga., Idaho, Ill., Ind., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., Mont., Nev., N.H., N.J., N.Y., N.C., Ohio, Oreg., Pa., R.I., S.C., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis.; Europe; Asia. Hypochaeris radicata is recognized by the coarse, perennial habit, stout roots, coarsely hirsute leaves and phyllaries, yellow corollas, and monomorphic, beaked cypselae. It is weedy and invasive in some areas.

Vascular plants of NE US and adjacent Canada
Perennial from a caudex, fibrous-rooted, or more often several of the roots enlarged; stem 1.5-6 dm, branched above or in small plants simple, naked or only sparsely and minutely bracteate, often spreading-hispid below; basal lvs hispid, oblanceolate, toothed or pinnatifid, 3-35 נ0.5-7 cm; heads usually several, terminating the branches, rather showy, the ligules surpassing the invol and ca 4 times as long as wide; invol 10-15 mm at anthesis, to ca 25 mm in fr, its bracts imbricate, glabrous or hispid; body of the achenes mostly 4-7 mm, multinerved, the nerves muricate; achenes all with a slender beak from a little shorter to more often much longer than the body, or the outer ones only short-beaked; some of the outer pappus-bristles often shorter than the inner and merely barbellate; 2n=8. Roadsides, pastures, fields, and waste places; native of Eurasia, now widely established in the U.S. and s. Can. May-Sept.

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

Wetland Indicator Status: FACU

Hypochaeris radicata
Open Interactive Map
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Paul Rothrock
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Paul Rothrock
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Paul Rothrock
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Paul Rothrock
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Paul Rothrock
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Paul Rothrock
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Paul Rothrock
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William Thomas
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William Thomas
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William Thomas
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Bill Harms
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Foster, Nicholas
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University of Florida Herbarium
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The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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