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

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  1. ^ a b c "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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