Cosmos (plant)

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Cosmos
2015-10-02 Cosmos fields in Japan 秋のコスモス畑 DSCF5806☆彡.jpg
Cosmos bipinnatus
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Supertribe: Helianthodae
Tribe: Heliantheae
Genus: Cosmos
Cav.[1]
Synonyms[2]
  • Cosmea Willd.
  • Adenolepis Less.
  • Cosmus Pers.
  • Cosmos sect. Eucosmos Sherff
  • Gosmos Motomi Ito, spelling variant, apparently accidental

Cosmos is a genus, with the same common name of cosmos, consisting of flowering plants in the sunflower family.[3][4]

Description[edit]

Cosmos are herbaceous perennial plants or annual plants growing 0.3–2 m (1 ft 0 in–6 ft 7 in) tall. The leaves are simple, pinnate, or bipinnate, and arranged in opposite pairs. The flowers are produced in a capitulum with a ring of broad ray florets and a center of disc florets; flower color is very variable between the different species. The genus includes several ornamental plants popular in gardens. Numerous hybrids and cultivars have been selected and named.

Distribution[edit]

Cosmos species are native to scrub and meadowland in Mexico where most of the species occur. In the United States, some varieties may be found as far north as the Olympic Peninsula in Washington, but the range also extends through Central America to South America as far south as Paraguay[citation needed]. One species, C. bipinnatus, is naturalized across much of the eastern United States and eastern Canada.[5]

It is also widespread over the high eastern plains of South Africa, where it was introduced via contaminated horsefeed during the Anglo-Boer War.[6]

Species[edit]

Cosmos flowers in Showa Memorial Park, Japan
Cosmos and a girl
Accepted species[2]

Gallery[edit]

References[edit]

  1. ^ "Genus Cosmos Cav". Germplasm Resources Information Network. United States Department of Agriculture. 1998-09-07. Archived from the original on 2015-09-24. Retrieved 2011-02-13.
  2. ^ a b Flann, C (ed) 2009+ Global Compositae Checklist
  3. ^ Cavanilles, Antonio José. 1791. Icones et Descriptiones Plantarum 1(1): 9–10, pl. 14
  4. ^ Tropicos, Cosmos Cav.
  5. ^ Biota of North America Program 2013 county distribution maps
  6. ^ Sandys, Celia (2009). Chasing Churchill: The Travels of Winston Churchill. Hachette UK. ISBN 978-0786740154.

External links[edit]