Desert-thorn 78 Desert-tobacco 29 Desertwillow 73 Devilsclaw 33, 63 Devilshead Cactus 60 Diamond Cactus 26 Dichelostemma 98 Dock 103 Dodder 17 Dogbane family 15 E Echinocactus 60 Echinocereus 97 Elephanttusks 63 Encelia 53 Enceliopsis 51 Ephedra 34 Eriogonum 70 Erodium 80 Eschscholtzia 63 Escobita 93 Evening-primrose 42 Evening-primrose family 42 Evolvulus 99 F Fairyduster 69 False-mesquite 69 Ferocactus 60 Fiddleneck 46 Figwort family 79, 83, 90, 93 Fileree 80 Fishhook Cactus 75 Flamingsword 66 Flourensia 47 Fouquieria 66 Four-o’clock 67 Four o’clock family 67, 92, 96 Franseria 107 Fremont screwbean 48