Omalotheca

Omalotheca is a genus of flowering plants in the family Asteraceae.[3][2] It is commonly known as arctic cudweed.[4][5]

Omalotheca
Omalotheca supina[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Gnaphalieae
Genus: Omalotheca
Cass.
Type species
Omalotheca supina
Synonyms[2]
  • Gnaphalium sect. Omalotheca (Cass.) Nutt.

There is some disagreement about which species should be included in Omalotheca. Some or all of the species are sometimes included in Gnaphalium.[6]

Species

As of April 2023, Plants of the World Online accepted the following species:[7]

  • Omalotheca caucasica (Sommier & Levier) Czerep.
  • Omalotheca diminuta (Braun-Blanq.) Bartolucci & Galasso
  • Omalotheca hoppeana (W.D.J.Koch) F.W.Schultz & Sch.Bip.
  • Omalotheca leucopilina (Schott & Kotschy ex Boiss.) Holub
  • Omalotheca nanchuanensis (Y.Ling & Y.Q.Tseng) Holub
  • Omalotheca norvegica (Gunnerus) F.W.Schultz & Sch.Bip.
  • Omalotheca roeseri (Boiss. & Heldr.) Holub
  • Omalotheca supina (L.) DC.
  • Omalotheca sylvatica (L.) F.W.Schultz & Sch.Bip.
  • Omalotheca × traunsteineri (Murr) Dostál

References
  1. 1796 painting by Jacob Sturm; published in Johann Georg Sturm - Figure from Deutschlands Flora in Abbildungen, labeled as Gnaphalium supinum
  2. Tropicos, Omalotheca Cass.
  3. Cassini, Alexandre Henri Gabriel de. 1828. Dictionnaire des Sciences Naturelles [Second edition] 56: 218–219in French
  4. USDA Natural Resources Conservation Service (NRCS) PLANTS Database: Omalotheca Cass. 12/26/2012 05:16 PM CST
  5. Flora of North America Omalotheca Cassini in F. Cuvier
  6. Flann, C (ed) 2009+ Global Compositae Checklist
  7. "Omalotheca Cass". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-04-20.


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