Deinandra minthornii, commonly known as Santa Susana tarplant, is an annual herb that is rare and endemic to the Santa Susana Mountains, Simi Hills, and Santa Monica Mountains of Southern California. It typically grows to a height of 1.8 to 3.3 feet (0.5 to 1 meter) and is characterized by its bright yellow corolla flowers that bloom from June to September, adding a splash of color to its native habitats. The Santa Susana tarplant thrives in the coastal sage scrub and chaparral ecosystems, which are characterized by dry summers, mild, wet winters, and a variety of shrubs and herbaceous plants.

This species is valued for its unique appearance and its role in supporting local pollinators. It is often used in restoration projects and native plant gardens to maintain biodiversity and provide habitat for wildlife. In cultivation, it requires conditions that mimic its natural habitat, including full sun exposure, well-drained soils, and minimal water once established. While it is not commonly found in the horticultural trade due to its rarity, it can be a noteworthy addition to native plant collections. Gardeners should be aware that it may require protection from over-collection and habitat destruction.CC BY-SA 4.0