The world epicentre of maprang action is Thailand, Forgot those sour green pretenders from indonesia and malaysia where they originated. The Thai trinomial naming system means Maprang is the first name. The second relates to which class it falls in priep which is sour, mayon chid which is sour to sweet when ripe and wan which is sweet. There are many selections in each of these classes. The third name usually relates to where it came from o Maprang wan Bangkok could be a theoretical name. Some mayon chid are nicely sweet when ripe and are well favoured and wan varies from bland to very pleasantly sweet. They also vary greatly in shape and fruit size.