Cassia (genus)

Cassia is a genus of flowering plants in the legume family, Fabaceae, and subfamily Caesalpinioideae. Species of Cassia are native to tropical regions around the world.

The genus Cassia has been subject to considerable taxonomic revision. Previously, it included a large number of species, but many have now been moved to the genera Senna and Chamaecrista. The remaining Cassia species are characterized by having indehiscent, fleshy pods.

These plants can range in form from small herbs to medium-sized trees. They typically feature pinnately compound leaves and showy flowers, often yellow in color. The flowers usually have five petals and ten stamens, some of which may be sterile.

Cassia species are often cultivated for their ornamental value due to their attractive foliage and vibrant flowers. Some species also possess medicinal properties and are used in traditional medicine. Various parts of the plant, such as the leaves, flowers, and pods, may be used for their laxative, purgative, or other therapeutic effects.

The exact number of species currently recognized within Cassia varies depending on the taxonomic authority consulted. Continued research and molecular analysis contribute to ongoing refinement of the classification within this group of plants.