接受名：Isodon japonicus (Burm. f.) H. Hara var. glaucocalyx (Maxim.) H. W. Li (accepted name)

异名：Amethystanthus glaucocalyx (Maxim.) Nemoto (synonym)、Isodon glaucocalyx (Maxim.) Kudo (synonym)、Plectranthus glaucocalyx Maxim. (synonym)、Plectranthus japonicus (Burm. f.) Koidz. var. glaucocalyx (Maxim.) Koidz. (synonym)、Rabdosia japonica var. glaucocalyx (Maxim.) H. Hara (synonym)

蓝萼香茶菜（东北植物检索表，辽宁经济植物志），山苏子（河北兴隆）

Rabdosia japonica(Burm. f.)Hara var. glaucocalyx(Maxim. )Hara in Journ. Jap. Bot. 47( 7): 196. 1972——Plectranthus glaucocalyx Maxin. in Mem. Acad. Sci. St. Petersb. Sav. Etrang. 9: 212, 475. 1859; Regel in Mem. Acad. Sci. St. Petersb. VII, 4(4): 114, n. 376. 1861; Fr. Schmidt in Mem. Acad. Sci. St. Petersb. 12(2): 299. 1868; Maxim. in Mel. Biol. Bull. Acad. Sci. St. Petersb. 9: 426. 1875; et in Bull. Acad. Sci. St. Petersb. 20: 453. 1875, quoad var. typicus Maxim. ; Franch. Pl. David. 1: 233. 1884; et in Mem. Soc. Sci. Nat. Cherbourg 24: 241. 1884; Herder in Bull. Soc. Nat. Moscou 59: 242. 1884; t in Ber Deutsch. Bot. Ges. 4: t. 6. f. 29-32. 1886; Hemsl. in Journ. Linn. Soc Bot. 26: 271. 1890; Kosh. in Act. Hort. Petrop. 12: 375. 1892; Komarov in Act. Hort. Petrop. 25: 394. 1907; Nakai in Journ. Coll. Sci. Univ. Tokyo 31: 140. 1911; Dunn in Notes Bot. Gard. Edinburgh 6: 137, 142. 1915; Diels in Fedde, Repert. Sp. Nov. 12: 479. 1922; Kudo in Journ. Coll. Sci. Univ. Tokyo 43(8): 53. 1921; Liu, Chihli Fl. 151. 1928; Hu et Tsai, 静生汇报2: 262. 1921; Belval in Mus. Heude Notes Bot. Chin. 2(2): 99. 1933; Hand. -Mazz. in Act. Hort. Gothob. 9: 97. 1934; 13: 367. 1939, in clavi; Volkova in Fl. URSS 21: 639. 1954——Isodon glaucocalyx(Maxim. ) Kudo in Mem. Fac. Sci. Agr. Taihoku Univ. 2: 126. 1929(var. typicus)——Plectranthus japonicus(Burm. f. )Koidz. var. glaucocalyx(Maxim. )Koidz. Fl. Symb. Orient. Asiat. 14. 1930——Amethystanthus japonicus(Burm. f. )Nakai var. typicus(Maxim. )Nakai in Bot. Mag. Tokyo 48: 789. 1934——Amethystanthus glaucocalyx(Maxim. )Nemoto, Fl. Jap. Suppl. 628. 1936.

这一变种与原变种不同在于叶疏被短柔毛及腺点，顶齿卵形或披针形而渐尖，锯齿较钝；花萼常带蓝色，外面密被贴生微柔毛。

产黑龙江，吉林，辽宁，山东，河北及山西；生于山坡、路旁、林缘、林下及草丛中，海拔可达1800米。苏联远东地区，朝鲜，日本也有。模式标本采自黑龙江。