Omalotheca norvegica

Omalotheca norvegica, synonym Gnaphalium norvegicum, is a European species of plants in the family Asteraceae.[1] It is known as the highland cudweed[2] or Norwegian arctic cudweed.[3] It is native to eastern Canada and Greenland, and widespread across much of Eurasia from the Mediterranean north to Finland and Iceland and east to Siberia.[1][4][5]

Omalotheca norvegica
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Omalotheca
Species:
O. norvegica
Binomial name
Omalotheca norvegica
(Gunnerus) F.W.Schultz & Sch.Bip.
Synonyms[1]
  • Gamochaeta norvegica (Gunnerus) Y.S.Chen & R.J.Bayer
  • Gnaphalium fuscatum Pers.
  • Gnaphalium fuscum Lam., nom. illeg.
  • Gnaphalium medium Vill.
  • Gnaphalium norvegicum Gunnerus
  • Gnaphalium sylvaticum subsp. fuscatum (Pers.) Čelak.
  • Gnaphalium sylvaticum subsp. norvegicum (Gunnerus) Bonnier & Layens
  • Synchaeta norvegica (Gunnerus) Kirp.

Omalotheca norvegica is similar to Omalotheca sylvatica, heath cudweed. However, it is 8 to 30 cm tall, the leaves are 3 veined, and all roughly equal in length. The leaves are also wooly/hairy on both sides.

In Great Britain, it is a rare plant found in central Scotland and in the northern highlands, found on acidic mountain rocks. It flowers July to August.[6]

References
  1. "Omalotheca norvegica (Gunnerus) F.W.Schultz & Sch.Bip". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-04-20.
  2. BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  3. USDA, NRCS (n.d.). "Omalotheca norvegica". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 22 July 2015.
  4. Altervista Flora Italiana, Canapicchia norvegese, Gnaphalium norvegicum Gunnerus includes photos and European distribution map
  5. Tela Botanica, Gnaphalium norvegicum Gunnerus in French with photos and French distribution map
  6. Rose, Francis (1981). The Wild Flower Key. Frederick Warne & Co. pp. 377–380. ISBN 0-7232-2419-6.
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