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This article is about the genus of plants known as catsears. For the common weedy catsear see Hypochaeris radicata
Hypochaeris radicata bluete.jpeg
Hypochaeris radicata
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Cichorieae
Genus: Hypochaeris

About 50 to 100; see text

  • Hypochoeris L. orth. var.

Hypochaeris (sometimes spelled Hypochoeris) is a genus of plants in the family Asteraceae. Many species are known as cat's ear. These are annual and perennial herbs generally bearing flower heads with yellow ray florets.

Estimates of the number of species range from about 50 [1] up to about 100.[2] Most species are native to South America, but some are found in Eurasia and North Africa. Species include:


  1. ^ Stebbins, G Ledyard (1971). Chromosomal evolution in higher plants. London: Edward Arnold. ISBN 0-7131-2287-0. 
  2. ^ Tomb, A Spencer; K L Chambers, D W Kyhos, A M Powell and P H Rave (Aug 1978). "Chromosome Numbers in the Compositae. XIV. Lactuceae". Amer. J. Bot. 65 (7): 717–21. doi:10.2307/2442146. JSTOR 2442146. 

Other sources[edit]

  • Cerbah, M; T Souza-Chies, MF Jubier, B Lejeune and S Siljak-Yakovlev (March 1998). "Molecular phylogeny of the genus Hypochaeris using internal transcribed spacers of nuclear rDNA: inference for chromosomal evolution". Mol Biol Evol 15 (3): 345–354. PMID 9501501. 
  • Cerbah, M; J Coulaud, Sc Brown and S Siljak-Yakovlev (March 1999). "Evolutionary DNA variation in the genus Hypochaeris". Heredity 82 (3): 261–266. doi:10.1038/sj.hdy.6884690. PMID 10336700. 

External links[edit]