Colombian Yellow Dragon

Colombian yellow is one of the sweetest varieties of dragon fruit. It is grown commercially due to its productivity. Genetically, it looks very different from other varieties of dragon fruit, with thorns appearing to grow in the ‘opposite’ direction.
Dragonfruit stems are scandent (climbing habit), creeping, sprawling or clambering, and branch profusely. There can be four to seven of them, between 5 and 10 m (16 and 33 ft)or longer, with joints from 30 to 120 cm (12 to 47 in) or longer, and 10 to 12 cm (3.9 to 4.7 in) thick; with generally three ribs; margins are corneous (horn-like) with age, and undulate
Family: Cactaceae
Subfamily: Cactoideae
Genus: Selenicereus
Species: S. undatus