Rangpur, Citrus × limonia or Citrus reticulata × medica, sometimes called the rangpur lime, mandarin lime or lemandarin, is a hybrid between the mandarin orange and the citron.

It is a citrus fruit with a very acidic taste and an orange peel and flesh.

Rangpur is also known in the Indian subcontinent as Sylhet lime (after another region also now in Bangladesh), surkh nimboo, and sharbati.

[1] It is known as a canton-lemon in South China, a hime-lemon in Japan, as limão-cravo in Brazil, and mandarin-lime in the United States.

[2] Citrus × limonia was introduced into Florida in the late nineteenth century by Reasoner Brothers of Oneco, who obtained their seeds from northwestern India.