Senna tora, commonly known as sickle senna, is an herbaceous annual plant originally from tropical regions of Central and South America, including rainforests and disturbed sites. It can grow up to 35 inches tall and is characterized by its pinnate leaves and clusters of yellow flowers that bloom from summer to fall. The flowers are modest in size but can be quite numerous, creating a noticeable display. Sickle senna produces fruit in the form of curved pods, which resemble a sickle, hence its common name.

Sickle senna is valued for its medicinal properties, particularly in traditional medicine, where it is used to treat various ailments. It is also used as a green manure crop due to its ability to fix nitrogen in the soil, which improves soil fertility. In cultivation, Senna tora prefers full sun to partial shade and thrives in well-drained soils. It is drought-tolerant once established and requires minimal maintenance, making it suitable for xeriscaping. However, its potential to become invasive when grown outside its native range should be considered, and it is advisable to consult local regulations before planting.CC BY-SA 4.0