Lupinus Angustiflorus, Narrow Flowered Lupine

Most lupines are blue or purple; lupinus angustiflorus is one of the few yellow-flowered species, found in the mountains and plateaus of northeast California, especially in and around Lassen Volcanic National Park. Flowers grow along the top 10 inches of the stems, on short stalks (petioles), and each measures about half an inch in length. Petals are mostly pale yellow in color, but the uppermost (the banner) has a darker yellow patch in the center, while the lower two may have a light blue tint.