Solanum angustifolium, commonly known as Buffalobur Nightshade, Narrowleaf Nightshade, or West Indian Nightshade, is a perennial herb that is often treated as an annual due to its growth habit. It is native to the Americas, particularly in areas such as the Great Plains and the Sonoran and Chihuahuan Deserts. This plant typically thrives in disturbed sites, roadsides, pastures, and desert grasslands. It grows at a moderate rate to a typical height of 1-3 feet (0.3-0.9 meters) and a width of 0.5-1.5 feet (0.2-0.5 meters). The plant features spiny stems and leaves, with yellow flowers that bloom in the summer and spring, which are followed by spiny fruits that contain seeds.

Buffalobur Nightshade is known for its drought tolerance and ability to thrive in poor soil conditions, making it a resilient plant in arid and semi-arid environments. Its bright yellow flowers can add color to a garden, but it is not commonly cultivated due to its spiny nature and potential toxicity. It is best grown in full sun or part shade and is adaptable to a variety of soil types, including clay, loam, or sandy soils, with medium water requirements. Gardeners should be cautious, as all parts of the plant are poisonous if ingested. Solanum angustifolium is potentially invasive in some regions and can outcompete native vegetation. It is important to check local regulations before planting, as it may be considered a noxious weed in some areas.CC BY-SA 4.0