The fruits commonly known in English as Dargon fruit are of ceveral cactus species. Stenocereus fruit (sour pitayas) are a variety that is commonly eaten in the regions of the Americas with extremely dry climate. Sweet pitayas come in three types. 1) Pitaya blanca or white-fleshed pitaya has red-skinned fruit with white flesh. This is the most commonly seen Dragon fruit. 2) Pitaya roja or red-fleshed pitaya has red-skinned fruit with red flesh. 3)Pitaya amarilla or yellow pitaya has yellow-skinned fruit with white flesh. All three types have tiny, edible black seeds (very similar to those found inside Kiwi). This fruit does not grow well in winter cold or summer heat, so its availability is limited, making it a precious treat.