Anogeissus is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of tree

Tree

A tree is a perennial woody plant. It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance. A minimum height specification at maturity is cited by some authors, varying from 3 m to...

s native to South Asia

South Asia

South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

, the Arabian Peninsula

Arabian Peninsula

The Arabian Peninsula is a land mass situated north-east of Africa. Also known as Arabia or the Arabian subcontinent, it is the world's largest peninsula and covers 3,237,500 km2...

, and Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, belonging to family Combretaceae

Combretaceae

Combretaceae is a family of flowering plants in the order Myrtales. The family includes about 600 species of trees, shrubs, and lianas in 18 genera. The family includes the leadwood tree, Combretum imberbe. Three genera, Conocarpus, Laguncularia and Lumnitzera, grow in mangrove habitats ....

. The genus has eight species, five native to South Asia, two endemic to the southern Arabian

South Arabian

The Modern South Arabian languages are spoken mainly by minority populations in the Arabian Peninsula in Yemen and Oman, which, together with the Ethiopian Semitic languages, form the Western South Semitic branch. In his glottochronology-based classification, A...

 Peninsula, and one native to Africa. Anogeissus latifolia, known as dhaora, is one of the most useful trees in India. Its leaves contain large amounts of tannin

Tannin

A tannin is an astringent, bitter plant polyphenolic compound that binds to and precipitates proteins and various other organic compounds including amino acids and alkaloids.The term tannin refers to the use of...

, and are used in India for tanning. The tree is the source of Indian gum, also known as ghatti gum, which is used for calico

Calico (fabric)

Calico is a plain-woven textile made from unbleached, and often not fully processed, cotton. It may contain unseparated husk parts, for example. The fabric is less coarse and thick than canvas or denim, but owing to its unfinished and undyed appearance, it is still very cheap. Originally from the...

 printing among other uses.