Hieracium abscissum

Hieracium abscissum is a species of plant in the tribe Cichorieae within the family Asteraceae. It is considered to be native to the south-western United States (Arizona and New Mexico), Mexico and Central America.[1][2][3][4][5][6]

Hieracium abscissum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Hieracium
Species:
H. abscissum
Binomial name
Hieracium abscissum
Less.[1]
Synonyms[1]
List
  • Pilosella abscissa (Less.) F.W.Schultz & Sch.Bip.
  • Hieracium anthurum Fr.
  • Hieracium comatum Fr.
  • Hieracium hirsutum Sessé & Moc.
  • Hieracium intybiforme Arv.-Touv.
  • Hieracium rusbyi Greene
  • Hieracium strigosum D.Don
  • Hieracium thyrsoideum Fr.
  • Pilosella comata (Fr.) F.W.Schultz & Sch.Bip.
  • Pilosella strigosa (D.Don) F.W.Schultz & Sch.Bip.
  • Pilosella thyrsoidea F.W.Schultz & Sch.Bip.

Hieracium abscissum is herbaceous and up to 75 cm (30 in) tall, with leaves on the stem and also in a rosette at the bottom. Leaves are lance-shaped, up to 20 cm (7.9 in) long, sometimes with teeth along the edge. One stalk branches toward the top, producing 5-60 flower heads. Each head has 20-24 yellow ray flowers but no disc flowers.[7]

References
  1. "Hieracium abscissum Less.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2022-08-30
  2. Biota of North America Program 2014 county distribution map
  3. Nash, D. L. 1976. Tribe XI, Cichorieae. In Nash, D.L. & Williams, L.O. (eds), Flora of Guatemala - Part XII. Fieldiana, Botany 24(12): 440–454, 598–603
  4. García-Mendoza, A. J. & J. A. Meave. 2011. Diversidad Florística de Oaxaca: de Musgos a Angispermas 1–351. Universidad Nacional Autónoma de México, Ciudad Universitaria
  5. Correa A., M.D., C. Galdames & M. Stapf. 2004. Catálogo de las Plantas Vasculares de Panamá 1–599. Smithsonian Tropical Research Institute, Panamá
  6. SEINet, Southwestern Biodiversity, Arizona chapter description, photos, distribution map
  7. Flora of North America, Hieracium abscissum Lessing, 1830.


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