Anamirta

Anamirta is a genus of climbing woody-stemmed shrubs and trees in the family Menispermaceae. These plants are native to tropical and subtropical regions of Asia. The genus is characterized by its dioecious nature, meaning individual plants are either male or female. The leaves are typically alternate, simple, and palmately lobed or unlobed, with a distinctive peltate attachment, where the petiole joins the blade in the center.

The flowers of Anamirta are small and inconspicuous, often borne in panicles. Male flowers have three to six sepals and petals, and several stamens. Female flowers possess similar floral parts but have a single carpel. The fruits are drupes, typically ovoid and containing a single seed.

One of the most well-known species is Anamirta cocculus, historically known by various common names including Indian berry or fish berry. The seeds of this species have been traditionally used as a fish poison due to the presence of picrotoxin, a potent neurotoxin. This toxin can cause convulsions and respiratory failure in fish and other animals. Historically, it was also used in some traditional medicine systems, though its toxicity limits modern medicinal applications. Other species within the genus are less widely known and are primarily found in their native Asian habitats. Conservation status varies among species, with some facing threats from habitat loss.