Synonyms: Huperzia crassa; Huperzia crassa var. crassa; Huperzia erythraea; Huperzia pilgeriana; Huperzia springii; Lycopodium bonae-voluntatis; Lycopodium crassum (homotypic); Lycopodium crassum var. springii; Lycopodium erythraeum; Lycopodium nesselianum; Lycopodium saururus var. crassum; Urostachys bonae-voluntatis; Urostachys bonae-voluntatis var. minor; Urostachys crassus (homotypic); Urostachys crassus var. herteri; Urostachys erythraeus (homotypic); Urostachys kupperi; Urostachys orionis; Urostachys pilgerianus (homotypic); Urostachys springii (homotypic)