17.紫萼香茶菜
名称文献：Rabdosia forrestii (Diels) Hara in Journ. Jap. Bot. 47 (7): 195. 1972——Plectranthus forrestii Diels in Notes Bot. Gard. Edinburgh 5: 229 1912; Dunn in ibid. 7: 169, 314. 1912, 384. 1913; 6: 143. 1915; Hand.-Mazz. Symb. Sin. 7: 942. 1936; et in Act. Hort. Gothob. 13: 366. 1939, in clavi——Isodon forrestii (Diels)Kudo in Mem. Fac. Sci. Agr. Taihoku Univ. 2: 130. 1929——Plectranthus irroratus auct. non Forrest ex Diels: Dunn in Notes Bot. Gard. Edinburgh 7: 169. 1913, p. p. quoad Forrest 2850.