. . "Anulocaulis leiosolenus (Torr.) Standl." . . "Magnoliopsida" . "Caryophyllales" . "Southwestern Ringstem" . . "Anulocaulis leiosolenus" . . . "Magnoliophyta" . . . . . . . . "Anulocaulis" . "Plantae" . "(Torr.) Standl." . "Nyctaginaceae" .