Omalotheca

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Omalotheca
Gnaphalium supinum Sturm25.jpg
Omalotheca supina [1]
Scientific classification OOjs UI icon edit-ltr.svg
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
(L.) DC.
Synonyms [2]
  • Gnaphalium sect. Omalotheca(Cass.) Nutt.

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

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]

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<i>Omalotheca sylvatica</i> Species of flowering plant

Omalotheca sylvatica, synonyms including Gnaphalium sylvaticum, is a species of plant in the family Asteraceae. It is commonly known as heath cudweed, wood cudweed, golden motherwort, chafeweed, owl's crown, and woodland arctic cudweed. It is widespread across the temperate Northern Hemisphere, throughout North America and Eurasia. The species was first formally described by Carl Linnaeus in 1753 as Gnaphalium sylvaticum.

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<i>Omalotheca norvegica</i> Species of flowering plant

Omalotheca norvegica, synonym Gnaphalium norvegicum, is a European species of plants in the family Asteraceae. It is known as the highland cudweed or Norwegian arctic cudweed. 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.

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References

  1. 1796 painting by Jacob Sturm; published in Johann Georg Sturm - Figure from Deutschlands Flora in Abbildungen, labeled as Gnaphalium supinum
  2. 1 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.