Agave (Agavaceae) family
Havard's century plant (Agave havardiana) -- in April -- Chihuahuan Desert Nature Center, TX yellow & orange TX-W
Havard's century plant (Agave havardiana) -- in April -- Big Bend Ranch State Park, TX
lechuguilla (Agave lechuguilla) -- in April -- Big Bend Ranch State Park, TX red & pink
Queen Victoria agave (Agave victoriae-reginae) -- in April -- Chihuahuan Desert Nature Center, TX green & brown TX-W
green sotol (Dasylirion leiophyllum) -- in April -- River Road East, Big Bend National Park, Texas green & brown
redflower false yucca (Hesperaloe parviflora) -- in July -- Bosque del Apache National Wildlife Refuge, NM red & pink NM-S
redflower false yucca (Hesperaloe parviflora) -- in April -- Chihuahua Desert Nature Preserve, TX TX-W
desert lily (Hesperocallis undulata) -- in March -- Palo Verde, CA white & cream CA-S
sandlily (Leucocrinum montanum) -- in April -- Mill Creek Link Trail, Lory State Park, CO white & cream
banana yucca (Yucca baccata) -- in April -- Big Bend Ranch State Park, TX white & cream
banana yucca (Yucca baccata) -- in April -- Dripping Springs Natural Area, NM NM-S
Joshua tree (Yucca brevifolia) -- in March -- Death Valley National Park, CA
soaptree yucca (Yucca elata) -- in April -- Big Bend Ranch State Park, TX white & cream
Eve's needle (Yucca faxoniana) -- in April -- western Texas white & cream
soapweed yucca (Yucca glauca) -- in June -- Orchard Cove Trail, Lory State Park, CO white & cream CO-F
soapweed yucca (Yucca glauca) -- in June -- Hall Ranch Open Space, Boulder County, CO
Spanish bayonet (Yucca harrimaniae var. harrimaniae) -- in May -- Canyons of the Ancients National Monument, CO white & cream
Mojave yucca (Yucca schidigera) -- in March -- U.S. 95 in southern Nevada white & cream
Spanish dagger (Yucca treculeana) -- in April -- River Road East, Big Bend National Park, Texas white & cream
Spanish dagger (Yucca treculeana) -- in April -- Dripping Springs Natural Area, NM NM-S