Synonyms: Cotyledon erubescens; Cotyledon minuta (homotypic); Cotyledon spinosa (heterotypic); Cotyledon spinosa var. polystachya; Crassula spinosa (homotypic); Orostachys chlorantha; Orostachys erubescens; Orostachys japonica var. erubescens; Orostachys minuta; Orostachys minuta f. alba; Orostachys spinosa var. erubescens; Orostachys spinosus; Sedum erubescens (heterotypic); Sedum spinosum (homotypic); Sedum spinosum var. minutum; Sempervivum cuspidatum; Umbilicus erubescens; Umbilicus spinosus (homotypic)