Synonyms: Acanthocalycium formosanum var. albispinum; Acanthocalycium formosum var. albispinum; Chamaecereus grandiflorus (homotypic); Echinocactus formosus var. crassispinus (homotypic); Echinopsis crassicaulis; Echinopsis formosa var. albispina (homotypic); Echinopsis formosa var. laevior (homotypic); Echinopsis formosa var. rubrispina (homotypic); Echinopsis formosa var. spinosior (homotypic); Helianthocereus crassicaulis; Helianthocereus grandiflorus (homotypic); Lobivia bruchii var. nivalis; Lobivia crassicaulis; Lobivia grandiflora (homotypic); Lobivia grandiflora var. crassicaulis; Lobivia grandiflora var. longispina; Lobivia grandiflora var. pumila; Lobivia huascha var. crassicaulis; Lobivia huascha var. grandiflora (homotypic); Soehrensia crassicaulis; Soehrensia grandiflora (homotypic); Trichocereus crassicaulis; Trichocereus grandiflorus; Trichocereus rowleyi (homotypic)