Synonyms: Dortmanna diversifolia; Dortmanna rupestris; Dortmanna tenera (homotypic); Dortmannia diversifolia; Dortmannia rupestris; Dortmannia tenera; Lobelia diversifolia (homotypic); Lobelia polygalifolia (homotypic); Lobelia rupestris; Lobelia subpubera var. weberbaueri; Lobelia tenera f. fendleri; Lobelia tenera var. belladonna; Lobelia tenera var. tenuicaulis; Lobelia veronicaefolia (homotypic); Lobelia veronicifolia (homotypic); Lobelia weberbaueri; Rapuntium rupestre; Rapuntium tenerum (homotypic); Rapuntium veronicifolium