Hieracium albiflorum

Secure  (NatureServe)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Hieracium
Species:
H. albiflorum
Binomial name
Hieracium albiflorum
Hook.
Synonyms[1]
List
  • Chlorocrepis albiflora (Hook.) W.A.Weber
  • Pilosella albiflora (Hook.) F.W.Schultz & Sch.Bip.
  • Hieracium helleri Gand.
  • Hieracium vancouverianum Arv.-Touv.

Hieracium albiflorum, known by the names white hawkweed and white-flowered hawkweed, is a common and widespread species of plant in the family Asteraceae.

Hieracium albiflorum is found in western North America, from Alaska and the Northwest Territories south to Mexico (Chihuahua, Sonora) and east to Manitoba and the Black Hills of South Dakota. There have been reports of populations in Québec and Wisconsin, but these are probably waifs or introductions.[2][3][4][5]

Hieracium albiflorum is found in forests and woodlands at low to moderate elevation. It is similar to its relative the common dandelion, except for having more than one flower head per plant, sometimes 50 or more in a flat-topped array. Each head has 6-25 white (rather than yellow as in most related species) ray flowers but no disc flowers.[6]

References

  1. ↑ "Hieracium albiflorum Hook.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2022-08-30
  2. ↑ Gary A. Monroe (2000). "Hieracium albiflorum". Fire Effects Information System. USDA Forest Service. Retrieved 2007-12-15.
  3. ↑ http://bonap.net/MapGallery/County/Hieracium%20albiflorum.png
  4. ↑ Biota of North America Program 2014 county distribution map
  5. ↑ Biota of North America Program 2014 state-level distribution map
  6. ↑ Flora of North America, Hieracium albiflorum Hooker, 1833.


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