Synonyms: Holosepalum dubium; Hypericum acutum var. imperforatum (homotypic); Hypericum desetangsii var. imperforatum (homotypic); Hypericum dubium var. maculatum; Hypericum dubium var. perforatum; Hypericum erosum; Hypericum leersii; Hypericum maculatum erosum; Hypericum maculatum f. latisepalum; Hypericum maculatum f. punctatum; Hypericum maculatum obtusiusculum; Hypericum maculatum styriacum; Hypericum maculatum var. babingtonii; Hypericum maculatum var. imperforatum (homotypic); Hypericum maculatum var. obtusiusculum; Hypericum maculatum var. perforatum; Hypericum maculatum var. punctatum; Hypericum obtusum; Hypericum quadrangulum dubium; Hypericum quadrangulum obtusiusculum (homotypic); Hypericum quadrangulum var. dubium; Hypericum quadrangulum var. epunctatum; Hypericum quadrangulum var. imperforatum (homotypic); Hypericum quadrangulum var. occidentale; Hypericum quadrangulum var. perforatum; Hypericum quadrangulum var. punctatum