الخميس، 12 مايو 2016

Clarkia

Clarkia



From Wikipedia, the free encyclopedia
Clarkia
Clarkia amoena.jpg
Clarkia amoena (Farewell to Spring)
Scientific classification
Kingdom:Plantae
(unranked):Angiosperms
(unranked):Eudicots
(unranked):Rosids
Order:Myrtales
Family:Onagraceae
Subfamily:Onagroideae
Tribe:Onagreae
Genus:Clarkia
Pursh
Species
over 40, see text
For the town in the United States, see Clarkia, Idaho.
Clarkia is a genus within the flowering plant family Onagraceae. Over 40 species are currently classified in Clarkia; almost all are native to western North America, though one species (Clarkia tenella) is native to South America.
Clarkias are typically annual plants, growing to a height of less than 1.5 metres. Their leaves are small and simple, from 1 to 10 cm in length depending on the species. Their flowers have four sepals and four petals.
Several members of the genus are sometimes referred to by the common name "Godetia", including Clarkia amoenaClarkia affinis, and Clarkia lassenensis (the Lassen Godetia). This is because they were formerly classified in a genus called Godetia, which is no longer recognised since its members have been absorbed into the Clarkia genus. Older sources may still use Godetia as a genus name.
The genus was named in honour of the explorer Captain William Clark.
The Royal Navy had a warship called HMS Clarkia, a flower class corvette.

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