Erysimum capitatum is a species of wallflower known commonly as the sanddune wallflower, western wallflower, or prairie rocket.
This species can be found in regions across North America, from the Great Lakes to the West Coast of the United States. Some varieties have an extremely narrow distribution, especially those endemic to California.
Erysimum capitatum is a mustard-like plant with thin, erect stems growing from a basal rosette and topped with dense bunches of variably colored flowers. Flowers are most typically bright golden, yellow, or tangerine-colored, but plants in some populations may have red, white or purple flowers. Each flower has four flat petals. Seed pods are nearly parallel to the stem. It is a biennial herb and its native habitats include plains, foothills, and high elevation coniferous forests.[1] The Latin specific epithet capitatum refers to the head-like shape of the flower cluster or the knobby stigma.[2]
There are varieties or subspecies of this plant. Some are listed endangered species. For example, Erysimum capitatum var. angustatum, the Contra Costa wallflower, is an endangered plant in the state of California. The varieties include:
Little information on this wallflower species relationship with pollinators exists. Andrew Moldenke studied a population of Erysimum capitatum var. perenne in Subalpine Talus Fell Scree of the Timberland Hall Area (2,900–3,500 metres (9,500–11,500 ft) elevation). He observed 13 species of flower visitors, although over 80% of the visits to the flowers were performed by two ant species, Formica lasioides and one from the Formica fusca group.
Erysimum capitatum is cultivated as an ornamental plant.[11] It is an attractive perennial, can be variable in appearance, and is used in butterfly gardening.
In Zuni ethnobotany, an infusion of the whole plant is used externally for muscle aches. The flower and the fruit are eaten as an emetic for stomach aches.[12]
Erysimum capitatum is a species of wallflower known commonly as the sanddune wallflower, western wallflower, or prairie rocket.
This species can be found in regions across North America, from the Great Lakes to the West Coast of the United States. Some varieties have an extremely narrow distribution, especially those endemic to California.
Erysimum capitatum est une espèce de fleurs du genre Erysimum. La plante est semblable aux plantes permettant de faire de la moutarde.
La plante est composée d’une tige partant d’une rosette et dont le sommet est couvert de fleurs jaunes (parfois orangées). Chaque fleur possède quatre pétales. La plante peut être utilisée comme plante de jardin.
Erysimum capitatum existe en plusieurs sous-espèces dont certaines sont considérées comme menacées de disparition dans certaines zones. Par exemple, Erysimum capitatum var angustatum, est menacée de disparition en Californie.
Ces plantes sont présentes sur une grande partie de l’Amérique du Nord mais certaines sous-espèces sont présentes uniquement dans des régions très peu étendues. E. capitatum capitatum s’étend par exemple en Utah et notamment dans le parc national de Bryce Canyon où il fleurit de mai à juillet.
On connait peu de chose par rapport aux relations entre la plantes et les insectes pollinisateurs. Le chercheur Andrew Moldenke étudia une population d’Erysimum capitatum var. perenne entre 1968-1970 dans une région subalpine (2900-3500 m). Il observa ainsi 13 espèces d’insectes sur les fleurs mais 80 % de ces insectes étaient des fourmis et principalement de type Formica lasioides et Formica fusca.
Erysimum capitatum est une espèce de fleurs du genre Erysimum. La plante est semblable aux plantes permettant de faire de la moutarde.
Erysimum capitatum là một loài thực vật có hoa trong họ Cải. Loài này được (Douglas) Greene mô tả khoa học đầu tiên năm 1891.[1]
Erysimum capitatum là một loài thực vật có hoa trong họ Cải. Loài này được (Douglas) Greene mô tả khoa học đầu tiên năm 1891.
