Bencao Gangmu Reference Library
血桐 / 象耳叶 / 流血树 / 烂头布 / 大叶麻枫 — Macaranga tanarius (L.) Müll.Arg. (syn. Ricinus tanarius)
Pinyin: Xuètóng / Xiàng'ěryè / Liúxuèshù · Malay: Mahang Putih / Mahang / Kubin · Family: Euphorbiaceae (大戟科)
Energetics
Cool to Cold (微寒 / 凉)
Flavor
Bitter, astringent, slightly sweet (苦、涩、微甘)
Meridians
Liver (肝), Spleen (脾), Large Intestine (大肠)
Traditional Edict
Bleeding Paulownia (Mahang Putih / Xue Tong). Peltate parasol leaves and trunk sap oxidizing to blood-red resin within minutes. Sovereign emergency wound-wrapping leaf (Pembalut Luka) that halts bleeding, knits wounds, binds dysentery, heals boils.
Cautions & Contraindications
- Wash wild leaves clean before applying to open wounds. High safety profile in external and internal applications. Contraindicated in cold watery diarrhea without heat signs.
Clinical Applications
- Acute bleeding cuts and traumatic lacerations (rapid platelet aggregation and hemostasis), acute bacillary dysentery, chronic weeping eczema, and atopic dermatitis.
Quality Markers
Mechanism & Phytochemistry
1. Macarangin and nymphaeol prenylated flavonoids downregulate COX-2 and iNOS while precipitating plasma proteins for rapid wound clotting. 2. Condensed tannins cross-link enterocyte proteins to stop diarrhea. 3. Antifungal and anti-MRSA membrane lysis.
Preparation & Dosage
THE SOVEREIGN MAHANG WOUND-WRAPPING LEAF: Fresh peltate parasol leaves washed, bruised, applied directly over bleeding lacerations, burns, and ulcers under cloth. Dried leaf/root decoction: 10-20 g daily. Topical red resin (Getah Mahang) dusted on cuts.
Appended Prescriptions
- 1. The Sovereign Emergency Wound-Cicatrizing Wrap with Centella asiatica (Pegaga) and Virgin Coconut Oil. 2. Rainforest Antidysenteric Decoction with Psidium guajava (Guava leaf).
Yemama Apothecary · Petaling Jaya, Malaysia · For educational and clinical reference only
