Sacahuista, The Devil's Shoestring
Sage Texas Violet
Sago palm
Sahuiliqui
Saltillo Evening Primrose
San Diego Red Bougainvillea
San Marcos Hibiscus
San Pedro Cactus
Sand Sage
Santa Rita Prickly Pear
Santa Rita Prickly Pear 'Tubac'
Scandia Juniper
Scarlet Bugler
Screw Bean Mesquite, Tornillo
Semi-Trailing Yellow Gazania
Senita
Shasta Daisy
Shaw's Agave
Shoestring Acacia
