Acanthocereus (triangle cactus) (1)   (1)
Ariocarpus (livingrock) (2)
Astrophytum (astrophytum) (1)
Bergerocactus (snakecactus) (1)
Carnegia (1)
Carnegiea (saguaro) (1)
Cephalocereus (cephalocereus) (3)
Cereus (sweetpotato cactus) (6)
Coryphantha (beehive cactus) (12)   (3)
Echinocactus (echinocactus) (4)   (1)
Echinocereus (hedgehog cactus) (22)
Epiphyllum (climbing cactus) (2)
Epithelantha (pingpong-ball cactus) (1)
Escobaria (foxtail cactus) (16)
Ferocactus (barrel cactus) (6)
Harrisia (applecactus) (7)
Hyalocereus (2)
Hylocereus (nightblooming cactus) (3)
Leptocereus (leptocereus) (2)   (1)
Lophophora (lophophora) (1)
Mammillaria (globe cactus) (29)   (15)
Melocactus (melocactus) (11)   (7)
Neolloydia (neolloydia) (1)
Opuntia (pricklypear) (116)   (3)   (4)
Pachycereus (pachycereus) (4)
Pediocactus (pincushion cactus) (8)
Peniocereus (peniocereus) (2)
Pereskia (pereskia) (3)
Pilosocereus (tree cactus) (7)   (1)
Rhipsalis (mistletoe cacti) (2)
Schlumbergera (Christmas cactus) (2)   (1)
Sclerocactus (fishhook cactus) (25)
Selenicereus (moonlight cactus) (5)
Stenocereus (stenocereus) (7)
Thelocactus (thelocactus) (2)
Turbinicarpus (6)   (5)

(...) = Species count
(...) = Endangered count
(...) = Invasive count