Lá giang - Vị thuốc lợi tiểu, tiêu thũng
Cây dây leo, sống lâu năm, có thể dài tới 50m. Thân mềm, nhẵn, cành non màu xanh lục nhạt; cành già màu nâu sẫm. Toàn cây có nhựa mủ trắng. Lá hình trứng, mọc đối, gốc tròn, đầu nhọn, mép nguyên, gân phụ lá so le, gốc gân phụ lá có tuyến; lá có vị chua ăn được. Hoa nhỏ màu phớt hồng, mọc thành chùm. Hạt có chùm lông ở đỉnh. Cây ra hoa từ tháng 5. Bộ phận dùng làm thuốc thân, rễ và lá.
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