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''Lupinus succulentus'' is a species of
lupin ''Lupinus'', commonly known as lupin, lupine, or regionally bluebonnet etc., is a genus of plants in the legume family Fabaceae. The genus includes over 199 species, with centers of diversity in North and South America. Smaller centers occur ...
e known by the common names hollowleaf annual lupine, arroyo lupine, and succulent lupine. It is native to California, where it is common throughout much of the state, and adjacent sections of Arizona and Baja California. ''L. succulentus'' is known from many types of habitat and it can colonize disturbed areas.


Description

''L. succulentus'' is a fleshy annual herb that grows up to in height. The amount of fertility and moisture generally dictates the height of the plant. Prefers moist clay or heavy soils in full sun. Each palmate leaf is made up of 7 to 9 leaflets up to 6 centimeters long. The inflorescence is a series of whorls of flowers each between 1 and 2 centimeters long. The flower is generally purple-blue with a white or pink patch on its banner, and there are sometimes flowers in shades of light purple, pink, and white. The fruit is a roughly hairy
legume A legume () is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock f ...
pod up to 5 centimeters long and about 1 centimeter wide.


Cultivation

Being the most water tolerant of all lupines, ''L. succulentus'' is used cultivated as an ornamental plant, for flower borders, native plant and wildlife gardens, and in natural landscaping projects. ;Horticultural specifications: *Height: 1–4 feet *Optimum soil temperature for germination: 55 °F–70 °F *Blooming Period: April–May *Germination: 15–75 days *Sowing depth: 1/8"


External links


Jepson Manual Treatment — ''Lupinus succulentus''CalFlora Database: ''Lupinus succulentus'' (arroyo lupine)''Lupinus succulentus'' Photo gallery
succulentus Flora of Arizona Flora of Baja California Flora of California Flora of Sonora Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Natural history of the Central Valley (California) Natural history of the Peninsular Ranges Natural history of the San Francisco Bay Area Natural history of the Santa Monica Mountains Natural history of the Transverse Ranges Garden plants of North America Flora without expected TNC conservation status {{Lupinus-stub