Mimosa tenuiflora

Mimosa tenuiflora is an arboreous plant with glabrescent, aculeate branches. Its leaves are bipinnate, paripinnate, and 8–14-foliolate, with opposite, oblong leaflets and actinodromous venation. The plant lacks nectaries and has caducous stipules. The inflorescence is a spike, axillary in position, with sessile, actinomorphic flowers. The calyx is gamosepalous with four sepals, and the corolla is gamopetalous, tubular, and whitish with four petals. The androecium is dialystaminous and homodinamous, with longitudinal anthers. The ovary is superior, stipitate, and pluriovulate. The fruit is a craspedium, stipitate, linear, and plane-corrugate, with a straight margin and glabrous, brown epicarp. The seeds are obovate, plane, with a brown coat and a basal hilum.

Mimosa tenuiflora is typically found in semi-arid and tropical regions, often in lower altitude areas but can be present up to 1,000 m. It is native to the northeastern part of Brazil and is commonly found in the semi-arid region of Paraíba. The species is also present in Mexico, Central America, and northern South America, including countries like Colombia, Venezuela, and El Salvador. It has been introduced to regions such as Java and New Guinea, where it grows in similar tropical environments.

Mimosa tenuiflora is adaptable to a range of tropical and semi-arid climates, making it suitable for cultivation in warm, dry regions. It prefers well-drained soils and can tolerate periods of drought. The plant is often found in disturbed areas and can be propagated through seeds or cuttings. Due to its ornamental value and potential medicinal uses, it is sometimes cultivated in botanical gardens and for traditional or commercial purposes in regions where it is native or naturalized.

Mimosa tenuiflora has a variety of traditional and modern uses. In traditional medicine, it is used for its astringent and healing properties, particularly in treating skin conditions and wounds. The bark and root are often prepared as decoctions or poultices. The plant is also used in spiritual and ritual practices in some indigenous communities. In horticulture, it is valued for its ornamental appearance and resilience in arid environments. Additionally, it is sometimes cultivated for its potential in phytoremediation and as a source of natural dyes.