Citrus × microcarpa (Calamansi, Calamondin)

Calamansi (Citrus × microcarpa), also known as calamondin, Philippine lime, or Philippine lemon, is an economically important citrus hybrid predominantly cultivated in the Philippines. It is native to the Philippines, Borneo, Sumatra, and Sulawesi (Indonesia, Malaysia, and Brunei) in Southeast Asia; as well as southern China and Taiwan in East Asia. Calamansi is ubiquitous in traditional Philippine Cuisine. It is naturally very sour, and is used in various condiments, beverages, dishes, marinades, and preserves. Calamansi is also used as an ingredient in Malaysian and Indonesian cuisines.

The rootstock is Trifoliata, and forms a dwarf shrub.