The Philippine orange, locally known as dalandan, is a member of the sweet orange species of the citrus family. Sweet oranges, for many years, was known as Citrus auranntium var. sinensis L. and was considered as a form of the sour orange but has now been considered a distinct species, C. sinensis Osbeck, although this was not universally agreed. Hence, although a lot of information scientifically names dalandan as C. aurantium, we shall refer to it as C. sinensis.Description
Originally from China, dalandans have adapted to local conditions and have developed a terrific flavor that is both acidic yet sweet. They are somewhat similar to Valencia oranges. Perhaps because both are varieties of C. sinensis. Fresh Dalandans have a bright and deep green skins, smell great, possess a natural shine and are firm to the touch. They have an obovate shape.
Sources:
http://www.hort.purdue.edu/
http://www.marketmanila.com/archives/dalandan/
