Penstemon incertus, commonly known as Mojave beardtongue, is a perennial herb native to the Mojave Desert, chaparral, and woodlands of southeastern California, including the Sierra Nevada and Tehachapi Mountains. It typically grows up to 3 feet tall and has a rounded, branching form. The leaves are linear to lance-shaped, and the plant produces glandular inflorescences with showy blue-purple, tubular flowers that bloom in the late spring to early summer.

Mojave beardtongue is valued for its vibrant floral display, which adds a splash of color to the garden and serves as an attractant for pollinators such as bees and hummingbirds. It is often used in native plant gardens, rock gardens, and as a border plant. This species is adapted to arid conditions and requires well-drained soils, minimal water once established, and full sun to part shade. While it is relatively low-maintenance, it can be susceptible to root rot if overwatered or planted in poorly drained soils.CC BY-SA 4.0