Hieracium pringlei, common name Pringle's hawkweed,[2] is a North American plant species in the tribe Cichorieae within the family Asteraceae. It is native to Mexico with additional populations in Guatemala, Arizona, and New Mexico.[3][4]

Hieracium pringlei is an herb up to 45 cm (18 in) tall with woolly hairs, with leaves both on the stem and in a rosette at the bottom. Leaves are up to 200 mm (7.9 in) long, hairy, occasionally with teeth on the edges. One stalk can produce 3-20 flower heads in a flat-topped array. Each head has 12-15 yellow ray flowers but no disc flowers.[5]

References

  1. ^ The Plant List, Hieracium pringlei A. Gray
  2. ^ NRCS. "Hieracium pringlei". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 23 July 2015.
  3. ^ Biota of North America Program 2014 county distribution map
  4. ^ Beaman, J. H. 1990. Revision of Hieracium (Asteraceae) in Mexico and Central America. Systematic Botany Monographs 29: 59.
  5. ^ Flora of North America, Hieracium pringlei A. Gray, 1883.
Allikas: http://en.wikipedia.org/wiki/Hieracium_pringlei
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