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    Yemama Apothecary

    Bencao Gangmu Reference Library

    Blood-Cooling, Antihypertensive, Anti-Dysenteric & Vulnerary Sovereign (清热解毒 / 利湿消肿凉血降压散瘀生肌治痢止泻 — 传统降血压治痢疾与咽痛第一蓝顶草 / 跌打外伤圣草)

    假败酱 / 蓝顶草 / 蓝蝶草 / 牙买加马鞭草 / 长穗木 — Stachytarpheta jamaicensis (L.) Vahl (syn. Verbena jamaicensis)

    Pinyin: Jiǎbàijiàng / Lándǐngcǎo / Chángsuìmù · Malay: Selasih Dandi / Selasih Dandi Biru / Ekor Tikus / Pecah Kaca Biru · Family: Verbenaceae (马鞭草科)

    Botanical Illustration

    Energetics

    Cool to Cold (寒 / 苦寒 / 凉)

    Flavor

    Bitter, acrid, astringent, slightly salty (苦、微辛、涩、微咸、大凉)

    Meridians

    Liver (肝), Large Intestine (大肠), Stomach (胃), Urinary Bladder (膀胱)

    Traditional Edict

    Blue Porterweed (Selasih Dandi / Ekor Tikus / Jia Bai Jiang). Slender rat-tail spikes blooming vivid sapphire-blue flowers. Sovereign Hypertensive Vasodilator (Ubat Darah Tinggi): lowers blood pressure, quenches feverish bacillary dysentery, seals bleeding cuts.

    Cautions & Contraindications

    • Pronounced blood-pressure lowering action (monitor blood pressure if taking concurrent prescription antihypertensives). CONTRAINDICATED in pregnancy (uterine-stimulating dynamics). Safe during lactation.

    Clinical Applications

    • Stage 1 and 2 essential hypertension (vascular eNOS vasodilation), acute bacillary dysentery (Shigella), acute infectious gastroenteritis, traumatic bleeding lacerations, and acute tonsillitis.

    Quality Markers

    Ipolamiide (Iridoid glucoside) >= 1.00%-2.20% & Verbascoside >= 1.50% (HPLC MHM standard)

    Mechanism & Phytochemistry

    1. Ipolamiide and verbascoside stimulate vascular endothelial eNOS and block calcium influx in vascular smooth muscle, reducing blood pressure. 2. Astringent tannins cross-link enterocytes to halt dysentery. 3. Direct styptic wound closure.

    Preparation & Dosage

    THE SOVEREIGN SELASIH DANDI ANTIHYPERTENSIVE & DYSENTERY DECOCTION: 15 to 30 g dried whole herb boiled in 500 mL water for 20 min; taken warm twice daily for hypertension or diarrhea. Fresh styptic poultice: 30 g fresh leaves crushed over bleeding cuts.

    Appended Prescriptions

    • 1. The Sovereign Nanyang Antihypertensive Triad with Orthosiphon stamineus (Misai Kucing) and Chrysanthemum. 2. Acute Bacillary Dysentery Draught with Psidium guajava (Guava leaf).

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    Yemama Apothecary · Petaling Jaya, Malaysia · For educational and clinical reference only