Question: Isla Pitahaya is an island in Bahía Concepción near Playa Santispac, in Baja California Sur, the island's name is derived from the fact that the island has many tall pitahaya cacti that are clearly observable from afar, they are the fruit of several cactus species indigenous to which locations?
Sentence (from "Isla Pitahaya, Baja California Sur"): Isla Pitahaya is an island in Bahía Concepción near Playa Santispac, in Baja California Sur.
Relevant evidence: No