Lupinus concinnus, commonly known as Bajada lupine, is an annual herb native to arid and semi-arid regions, including desert scrub, sandy washes, and open areas within chaparral and sagebrush communities in the southwestern United States from California to Texas and northern Mexico. It typically grows 4-12 inches in height, with hairy stems and small palmate leaves composed of 5 to 9 leaflets. Bajada lupine is notable for its dense spirals of showy flowers that can be purple, pink, or nearly white, each measuring 0.2-0.5 inches long, blooming in the spring. The fruit is a hairy legume pod approximately 0.4 inches long.

Bajada lupine is valued for its ability to thrive in poor, sandy soils and its low water requirements, making it suitable for xeriscaping and naturalistic plantings in arid regions. Its vibrant flowers attract pollinators, adding to the ecological value of gardens and landscapes. While it is not commonly used in large-scale cultivation, it can be a charming addition to rock gardens, borders, and wildflower meadows. Bajada lupine requires full sun and well-drained soils. It is relatively free of serious pests and diseases but can be susceptible to root rot if overwatered.CC BY-SA 4.0