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双片苣苔[Didymostigma obtusum(C.B.Clarke)W.T.Wang]为苦苣苔科(Gesneriaceae)双片苣苔属一年生草本植物,茎渐升或近直立,高12~20 cm,有3~5节,多少密被柔毛。叶对生;叶片草质,卵形,长2~10 cm,宽1.5~7 cm,顶端微尖或微钝,基部稍斜,宽楔形或斜圆形,边缘具钝锯齿,两面被柔毛,下面毛稀疏,并常带紫红色,叶脉每侧5~8条;叶柄被柔毛,长0.8~4.0 cm。花序腋生,不分枝或2~4回分枝,有2~10朵花;花序梗被柔毛,长4~15 cm;苞片披针状线形,被柔毛,长3~6 mm,宽0.5~1 mm。
Didymostigma obtusum (CBClarke) WTWang is a biennial genus of the genus Gesneriaceae. The stems are gradually or nearly erect, 12-20 cm high, with 3 to 5 nodes, How dense is pilose. Leaves opposite; leaf blade herbaceous, ovate, 2 to 10 cm long, 1.5 to 7 cm wide, apically slightly apiculate or slightly blunt, base slightly oblique, broadly cuneate or obliquely rounded, margin serrate, both surfaces pilose , Below the sparse hair, and often with purple, veins 5 to 8 per side; petiole pubescent, length 0.8 ~ 4.0 cm. Inflorescences axillary, unbranched or 2 to 4 branched, with 2-10 flowers; peduncle pilose, 4-15 cm long; bracts lanceolate-linear, pilose, 3-6 mm wide 0.5 ~ 1 mm.