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石蝉草的药材性状与鉴别

ว 2026-09-09 23:09:30ที่ 鉴别方法เ 中国国际医疗服务系统
石蝉草为胡椒科植物石蝉草Peperomia dindigulensis Miq.的全草,别名火伤叶、胡椒草、散血胆、豆瓣七、散血丹、石马菜、豆瓣绿、红豆瓣。原形态:一年生肉质草本,茎直立或基部匍匐状,分枝,被短柔毛,高10-30厘米,下部几节常生不定根。叶对生或3-4片轮生,膜质,有腺点,菱状椭圆形或倒卵形,长2-4厘米,宽1-2厘米,顶端圆或钝,基部阔楔形或圆形,全缘,两面被短柔毛;叶柄长0.5-1.5厘米被毛。穗状花序腋生或顶生,单条或2-3条聚生,长2-10厘米无毛;花小两性疏生于肉质花序轴上;总花梗被毛长0.5-1.5厘米;苞片近圆形有腺点盾状;雄蕊2枚有短花丝;子房倒卵形柱头近顶生被毛。浆果球形直径不足0.5毫米顶端稍尖。花期4-7月及10-12月。生境分布常生于山谷、溪边或林下石缝内,分布云南、广西、广东、福建、台湾等地。石蝉草与马齿苋区别:石蝉草专生长在阴湿石壁苔藓处,叶片肉质圆润,但茎叶纹理和马齿苋区别很大,马齿苋为马齿苋科植物,茎平卧或斜倚,叶扁平肥厚倒卵形,花黄色,与石蝉草的穗状花序明显不同。
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