- Acanthaceae – Acanthus Family
- Aceraceae – Maple Family
- Agavaceae – Century-plant Family
- Aizoaceae – Fig-marigold Family
- Amaranthaceae – Amaranth Family
- Anacardiaceae – Sumac Family
- Apiaceae – Carrot Family
- Apocynaceae – Dogbane Family
- Aristolochiaceae – Birthwort Family
- Asclepiadaceae – Milkweed Family
- Asteraceae – Aster Family
- Bignoniaceae – Trumpet-creeper Family
- Boraginaceae – Borage Family
- Brassicaceae – Mustard Family
- Cactaceae – Cactus Family
- Campanulaceae – Bellflower Family
- Capparaceae – Caper Family
- Caprifoliaceae – Honeysuckle Family
- Caryophyllaceae – Pink Family
- Celastraceae – Bittersweet Family
- Chenopodiaceae – Goosefoot Family
- Commelinaceae – Spiderwort Family
- Convolvulaceae – Morning-glory Family
- Crassulaceae – Stonecrop Family
- Crossosomataceae – Crossosoma Family
- Cucurbitaceae – Cucumber Family
- Cupressaceae – Cypress Family
- Cuscutaceae – Dodder Family
- Ephedraceae – Mormon-tea Family
- Equisetaceae – Horsetail Family
- Ericaceae – Heath Family
- Euphorbiaceae – Spurge Family
- Fabaceae – Pea Family
- Fagaceae – Beech Family
- Fouquieriaceae – Ocotillo Family
- Fumariaceae – Fumitory Family
- Gentianaceae – Gentian Family
- Geraniaceae – Geranium Family
- Hydrangeaceae – Hydrangea Family
- Hydrophyllaceae – Waterleaf Family
- Iridaceae – Iris Family
- Juglandaceae – Walnut Family
- Krameriaceae – Krameria Family
- Lamiaceae – Mint Family
- Liliaceae – Lily Family
- Linaceae – Flax Family
- Loasaceae – Loasa Family
- Lythraceae – Loosestrife Family
- Malpighiaceae – Barbados Cherry Family
- Malvaceae – Mallow Family
- Nyctaginaceae – Four o'clock Family
- Nymphaeaceae – Water-lily Family
- Oleaceae – Olive Family
- Onagraceae – Evening Primrose Family
- Orobanchaceae – Broom-rape Family
- Oxalidaceae – Wood-Sorrel Family
- Papaveraceae – Poppy Family
- Passifloraceae – Passion-flower Family
- Pedaliaceae – Sesame Family
- Phytolaccaceae – Pokeweed Family
- Pinaceae – Pine Family
- Plantaginaceae – Plantain Family
- Platanaceae – Plane-tree Family
- Plumbaginaceae – Leadwort Family
- Poaceae – Grass Family
- Polemoniaceae – Phlox Family
- Polygalaceae – Milkwort Family
- Polygonaceae – Buckwheat Family
- Portulacaceae – Purslane Family
- Primulaceae – Primrose Family
- Pteridaceae – Maidenhair Fern Family
- Ranunculaceae – Buttercup Family
- Rhamnaceae – Buckthorn Family
- Rosaceae – Rose Family
- Rubiaceae – Madder Family
- Salicaceae – Willow Family
- Santalaceae – Sandalwood Family
- Sapindaceae – Soapberry Family
- Saururaceae – Lizard's-tail Family
- Saxifragaceae – Saxifrage Family
- Scrophulariaceae – Figwort Family
- Simmondsiaceae – Jojoba Family
- Solanaceae – Potato Family
- Tamaricaceae – Tamarix Family
- Ulmaceae – Elm Family
- Verbenaceae – Verbena Family
- Violaceae – Violet Family
- Viscaceae – Christmas Mistletoe Family
- Vitaceae – Grape Family
- Zygophyllaceae – Creosote-bush Family
Plant Family
Listed here are some of the many plant families that can be found in southeastern Arizona.