Hieracium albertinum

Hieracium albertinum, known as western hawkweed or houndstongue hawkweed, is a species of the genus Hieracium that is very similar to Hieracium albiflorum with white flowers but differs in that the flower heads are clustered and the leaves, stems and bracts are covered in a thick layer of hairs. Standing 1 inch (3 cm) to 5 inches (13 cm) tall, it can be found blooming from June through August in forest clearings.[4][5]

Hieracium albertinum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Tribe: Cichorieae
Genus: Hieracium
Species:
H. albertinum
Binomial name
Hieracium albertinum
Hieracium albertinum distribution
Synonyms
  • Hieracium cynoglossoides Arv.-Touv.[1]
  • Hieracium cusickii Gandog.
  • Hieracium flettii St. John & Warren[2]
  • Hieracium scouleri Hooker
  • Hieracium absonum J. F.
  • Hieracium chapacanum Zahn[3]
  • Hieracium scouleri var. albertinum (Farr) G.W. Douglas & G.A. Allen
  • Hieracium scouleri var. griseum (Rydb.) A.Nels.[2]

Hieracium scouleri or Scouler's woollyweed, which has also been accepted as a synonym for Hieracium albertinum,[1][3][6] has a different distribution range and yellow flowers.[7]

There is some concern for Hieracium albertinum (and other native species) because while they are members of the genus Hieracium whose introduced species are often aggressively invasive or weedy, reproducing vegetatively from aboveground runners called stolons or from wandering underground stems called rhizomes, the less aggressive native hawkweeds reproduce only by reseeding.[8] While not listed as endangered, H. albertinum is somewhat threatened while its environment is overrun by the aggressive non-native family as well as being listed as a noxious weed due to its membership in the same genus.[9]

Distribution

Hieracium albertinum is native to North America and found east of the Cascades[4] in the states of Idaho, Montana, Oregon, Washington and Wyoming.[2]

References
  1. "Hieracium cynoglossoides". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 2007-12-26.
  2. Natural Resources Conservation Service (2007). "PLANTS Profile for Hieracium scouleri Hook. var. albertinum". The PLANTS Database. USDA, Baton Rouge, LA 70874-4490 USA. Retrieved 2007-12-18.
  3. Flora of North America. "Hieracium scouleri in Flora of North America". Flora of North America North of Mexico. New York and Oxford: Flora of North America Association. 19, 20 and 21: 281, 282, 283, 289. Retrieved 2007-12-27.
  4. Peterson Field Guide, Theodore F. Niehaus (1976) [1976]. Pacific States Wildflowers. The Peterson Field Guide Series. Illustrations by Charles L. Ripper. New York, New York 100003: Houghton Mifflin Company. pp. 102. ISBN 0-395-91095-1.CS1 maint: location (link)
  5. Farr, Edith May. 1906. Ottawa Naturalist 20(5): 109–110
  6. Integrated Taxonomic Information System (ITIS). "Standard Report Hieracium cynoglossoides". Retrieved 2007-12-26.
  7. Natural Resources Conservation Service (2007). "PLANTS Profile for Hieracium scouleri". The PLANTS Database. USDA, Baton Rouge, LA 70874-4490 USA. Retrieved 2007-12-27.
  8. Sarah Walker. "Weeds: Which Ones Should We Worry About?". Discovering Lewis & Clark. Retrieved 2007-12-19.
  9. Germplasm Resources Information Network. "Invasive and Noxious Weeds". (GRIN) Online Database. USDA, ARS, National Genetic Resources Program. Retrieved 2007-12-26.
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