Lupinus benthamii
Introduction '''''Lupinus benthamii''''' is a species of lupine known by the common name '''spider lupine'''.
Distribution The plant is endemic to central California, where it is known from the Central Coast Ranges across the Central Valley into the Sierra Nevada foothills. It is common in some areas, covering hillsides with its blue blooms in the spring.
Description ''Lupinus benthamii'' is a hairy annual herb growing  tall. Each palmate leaf is made up of 7 to 10 leaflets each up to  long. They are narrow and linear in shape, just a few millimeters wide.The inflorescence is an erect raceme of flowers up to  tall, the flowers sometimes arranged in whorls. The flower is between 1 and 2 centimeters long and bright to deep blue in color, generally with a white or pink spot on the banner, or upper petal.The fruit is a hairy legume pod about  long.
References
External links ** Jepson Manual Treatment for ''Lupinus benthamii''* ''Lupinus benthamii'' — UC Photo gallery