Streptanthus flavescens, commonly known as Yellowish Jewelflower, is a perennial herb native to the serpentine soils of California’s chaparral, woodland, and grassland habitats. It typically grows to a height of 1-2.5 feet (0.3-0.8 meters) and is characterized by its erect, slender stems and glaucous leaves. The yellow flowers, which bloom in the spring, are modest in size but can be quite showy due to their unique shape and the contrast with the bluish-green foliage. The plant is particularly adapted to survive in harsh conditions with poor, mineral-heavy soils.

The Yellowish Jewelflower is valued in cultivation for its drought tolerance and its ability to thrive in challenging soil conditions, making it a suitable candidate for xeriscaping and native plant gardens. It is often used to add color and interest to rock gardens or as part of a wildflower mix in naturalistic plantings. While it requires minimal maintenance once established, it is important to avoid overwatering and to provide well-draining soil to prevent root rot. The plant is not commonly affected by diseases, but it can be susceptible to snail and slug damage.CC BY-SA 4.0