N Nigger Head, [159], [160]-61, [174]-75 Night Blooming Cereus, [12]-15, [25]-26 Nopals, [106] Nyctocereus serpentinus, [8]
O Old Man Cactus, [6]-7, [21]-22 Opuntia Genus (Cholla), [89], [93], [119]-52 acanthocarpa, [127], [143]-44 arbuscula, [128], [133], [147] Bigelovii, [129], [144]-45 fulgida, [136], [138], [149]-50 growth and habitats, [120]-25 how to identify and how to grow, [140]-41 leptocaulis, [127], [128], [142]-43 Parryi, [126], [141]-42 spinosior, [134], [148] Stanlyi, [137], [138], [150]-51 tetracantha, [131], [132], [146] Thornberi, [133], [135], [148] versicolor, [130]-32, [135], [145]-46 Whipplei, [93], [137], [151]-52 Opuntia Genus (Prickly Pears), [89]-118 basilaris, [100], [115] Blakeana, [90]-91, [107]-108 chlorotica, [103], [116]-17 Covillei, [101]-103, [116] delicata, [91]-92, [108]-109 discata, [97]-99, [113] Engelmannii, [99], [113]-14 growth and habitat, [89]-90, [120]-21, [123]-25 how to identify and how to grow, [106]-107 hystricina, [104]-106, [117]-18 laevis, [94]-95, [110] linguiformis, [96], [112] macrocentra, [100], [105], [114]-15 santa rita, [92]-94, [109]-10 Toumeyi, [95]-96, [111]
P Papago Fruit Cactus, [90]-91, [107]-108 Pincushion Cacti, [33], [34]-61, [123] Pineapple Cactus, [51]-52 Pink-Flowered Visnagita, [161], [175]-76 Pipe Organ Cactus, [7]-8, [22]-23 Pitahaya, [7], [22]-23 Pitahaya dulce, [8] Platopuntia, [106], [120] Popular Cholla, [131], [132], [146] Porcupine Prickly Pear, [104]-106, [117]-18 Prickly Pear Cacti, [89]-118, [120]-21, [124]-25 Prohibition Cactus, [5]-6, [21] Prolific Tree Cholla, [128], [133], [147] Purple Prickly Pear, [92]-94, [109]-10 Purple Spined Visnagita, [156], [170]-71
Q Queen of Night, [8], [14], [25]-26
R Rainbow Cactus, [70], [83]-85 Recurved Spine Pincushion, [38], [50]-51 Reina de Noche, [8], [14], [23]-24, [25]-26 Rhipsalis Genus, [27] Rose’s Hedgehog Cactus, [68], [81]-82
S Sage of the Desert, [10], [11], [24]-25 Sahuaro, [9]-12, [24]-25 Salmon-Flowered Hedgehog Cactus, [68], [80]-81 Schottii, [3]-5, [20] Sclerocactus polyancistrus, [178] Whipplei, [183]-84 Senita, [3]-5, [20] Serpent Cactus, [8]-9, [18], [23]-24 Short Spined Strawberry Cactus, [71]-73, [85] Showy Pincushion, [44], [58]-59 Sina, [3]-5, [20] Slender Pincushion Cactus, [40], [52] Smooth Prickly Pear, [94]-95, [110] Snowball Cactus, [43], [57] Spiny Hedgehog Cactus, [67] Spiny Tree Cholla, [134], [148] Strawberry Cacti, [63]-87 Sunset Cactus, [41], [54]
T Tasajillo, [128], [142]-43 Tasajo, [134], [148] Teddy Bear Cactus, [144]-45 Thornber’s Cholla, [133], [135], [148] Traveler’s Compass, [158], [171]-72 Traveler’s Friend, [157]-58, [159], [171]-72 Turk’s Head, [158], [172]-73
V Vela de Cojote, [137] Visnaga, [154]-84
W Whipple’s Cholla, [93], [137], [151]-52 Whipple’s Visnagita, [167], [183]-84 White Persian Cat Cactus, [6], [21]-22