agave genus --- agave family

Havard's century plant (Agave havardiana)  -- in April -- Chihuahuan Desert Nature Center, TX   yellow & orange    

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