《中国植物志》|| 唇形科 LABIATAE ||山香组 Sect. Mesosphaeria Benth. ||山香 Hyptis suaveolens (L.) Poit.

1.山香（广东、福建）山薄荷（福建厦门），毛老虎（广西南宁、百色，广东），蛇百子、毛射香（广西百色），药黄草（广西南宁），假蕾香、臭草（广东），狛骨消（亨利台湾植物名录）图版85：1-6
Hyptis suaveolens (Linn.) Poit. in Ann. Mus. Paris 7: 472, t. 29, f. 2. 1806; Benth. Labiat. Gen. et Sp. 124. 1833; et in DC. Prodr. 12: 126. 1848; Miq. Fl. Ind. Bat. 2: 959. 1858; Hance in Journ. Bot. n. s. 7: 231. 1878; Hook. f. Fl. Brit. Ind. 4: 630. 1885; Henry in Trans. Asiat. Soc. Japan 24: Suppl. 72. 1896; Matsum. et Hayata in Journ. Coll. Sci. Univ. Tokyo 22: 308. 1906; Prain in J. As. Soc. Bengal 74, 2 ext. no. 705. 1907; Matsum. Pl. Jap. 2(2): 540. 1912; Dunn et Tutch. in Kew Bull. Misc. Inf. Add. Ser. 10: 208. 1912; Matsum. et Kudo in Bot. Mag. Tokyo 26: 301. 1912; Dunn in Notes Bot. Gard. Edinburgh 6: 145. 1915; Ridley, Fl. Mal. Pen, 2: 645. 1923; Merr. Enum. Philip. 3: 417. 1923; Merr. in Lingnan Agr. Rev. 2: 137. 1925: in Lingnan Sci. Journ. 5: 161. 1927: Kudo in Mem. Fac. Sci. Agr. Taihoku Univ. 2: 147. 1929; Mukerj. in Rec. Bot. Sur. Ind. 14(1): 63. 1940; Back. & Bakh, f. Fl. Java 2: 634. 1965; H. Keng in Gard. Bull. 24: 96. 1969——Ballota suaveolens Linn. Syst. Nat. ed. 10, 1100. 1759——Bysteropogon graveolens Bl. Bijdr. 824. 1825——chauera graveolens Hassk. in Flora 25. Beibl. : 25. 1842——Mesosphaerum suaveolens(Poit.)O. Ktze. Rev. Gen. Pl. 525. 1891.
一年生、直立、粗壮、多分枝草本，揉之有香气。茎高60-160厘米，钝四稜形，具四槽，被平展刚毛。叶卵形至宽卵形，长1.4-11厘米，宽1.2-9厘米，生于花枝上的较小，先端近锐尖至钝形，基部圆形或浅心形，常稍偏斜，边缘为不规则的波状，具小锯齿，薄纸质，上面榄绿色，下面较淡，两面均被疏柔毛；叶柄柔弱，长0.5-6厘米，腹凹背凸，毛被同茎。聚伞花序2-5花，有些为单花，着生于渐变小叶腋内，成总状花序或圆锥花序排列于枝上。花萼花时长约5毫米，宽约3毫米，但很快的长大而长达12毫米，宽至6.5毫米，10条脉极凸出，外被长柔毛及淡黄色腺点，内部有柔毛簇，萼齿5，短三角形，先端长锥尖，长约1.5-2毫米，直伸。花冠蓝色，长6-8毫米，外面除冠筒下部外被微柔毛，冠筒基部宽约1毫米，至喉部略宽，宽约2毫米，冠檐二唇形，上唇先端2圆裂，裂片外反，下唇3裂，侧裂片与上唇裂片相似，中裂片囊状，略短。雄蕊4，下倾，插生于花冠喉部，花丝扁平，被疏柔毛，花药汇合成1室。花柱先端2浅裂。花盘阔环状，边缘微有起伏。子房裂片长圆形，无毛。小坚果常2枚成熟，扁平，长约4毫米，宽约3毫米，暗褐色，具细点，基部具二着生点。花、果期一年四季。
产广西，广东，福建及台湾；为一杂草，生于开旷荒地上。原产热带美洲，现广布于全热带。
全草入药，内服或外用，治赤白痢、乳腺炎、痈疽、感冒发烧、头痛、胃肠涨气、风湿骨痛、娱蚣及蛇咬伤、刀伤出血、跌打肿痛、烂疮、皮肤搔痒、皮炎及湿疹等症。此外，据报道，果含油24%，蛋白质22%；油的折射率（4℃）1.4696，皂化值188，碘值146脂肪酸成分：饱和酸12，油酸6，亚油酸77，共扼三烯酸0.2。

《Flora of China》|| Lamiaceae || Hyptis ||山香 Hyptis suaveolens

1. Hyptis suaveolens (Linnaeus) Poiteau, Ann. Nat. Hist. 7: 472. 1806.

山香 shan xiang

Ballota suaveolens Linnaeus, Syst. Nat., ed. 10, 2: 1100. 1759; Bysteropogon suaveolens (Linnaeus) Blume; Mesosphaerum suaveolens (Linnaeus) Kuntze; Schauera suaveolens (Linnaeus) Hasskarl.

Herbs annual, aromatic, robust, branched, erect. Stems 0.6-1.6 m, spreading hispid. Petiole slender, 0.5-6 cm; leaf blade ovate to broadly ovate, 1.4-11 × 1.2-9 cm, adaxially olive green, abaxially pilose, base rounded to shallow cordate, oblique, margin serrulate, apex subacute to obtuse. Cymes (1- or) 2-5-flowered, in racemes or panicles. Calyx ca. 5 × 3 mm, dilated to 12 × 6.5 mm in fruit, villous, yellowish glandular, throat tufted villous, veins very elevated; teeth broadly triangular, long subulate, 1.5-2 mm. Corolla blue, 6-8 mm, puberulent except near base; tube ca. 2 mm wide at throat; upper lip lobes reflexed; middle lobe of lower lip shorter, lateral lobes similar to upper lip. Nutlets dark brown, 2, flattened, ca. 4 × 3 mm, dotted, with 2 basal white scars. Fl. and fr. year round.

Weeds in open waste areas. Fujian, Guangdong, Guangxi, Taiwan [native in tropical America, widespread tropical weed].

Used medicinally.