Alasa

Gambeya albida, commonly known as white star apple, is a forest fruit tree commonly found throughout tropical Africa. It is closely related to the African star apple which is also common throughout West Africa. Some schools of thought feel that they may just be a variety of the same species. Also in the family is the purple star apple (Chrysophyllum cainito). Amongst the Yoruba of Nigeria, it is called Agbalumo while it is called udala (udara) in the Igbo, Udari among the Efiks of Southern Nigeria with the usage of the latter term, coincidentally, also permeating across much of south-western Nigeria (i.e.,further east of Akoko-Ondo) the northern (Hausa-Fulani) parts of the country. The Hausa people refer to it as Agwaluma, a term they adopted from the Yoruba language, rather than "Agbalumo." This is because there is no African star apple native to Hausa Land. One local enduring sobriquet is derived from the Yoruba agbalumo, i.e., ‘agbaluma,’ and is used in certain parts of Nigeria.[citation needed]

Source: Wikipedia