鸡蛋花 / 缅栀子 — Plumeria rubra L.

Pinyin: Jīdànhuā · Malay: Bunga Kemboja · Family: Apocynaceae (夹竹桃科)

Energetics

Cool (凉)

Flavor

Sweet, bland, slightly bitter (甘、淡、微苦)

Meridians

Lung (肺), Stomach (胃), Large Intestine (大肠)

Traditional Edict

Clears summer-heat and harmonizes Stomach (清热解暑), drains dampness and stops diarrhea (利湿止泻), moistens Lungs and stops cough (润肺止咳). Core flower in Lingnan Five Flowers Tea (Wu Hua Cha) for summer fever, dysentery, and heat cough.

Cautions & Contraindications

Raw milky sap from stems and bark is toxic and must never be ingested. Flower is contraindicated in Spleen-Stomach cold diarrhea without heat and in pregnancy.

Clinical Applications

Summer-heat gastrointestinal syndromes, infectious gastroenteritis (Shigella, Salmonella), pediatric damp-heat indigestion, heat cough, and vascular inflammation.

Quality Markers

Plumericin & Total Flavonoids >= 1.0%

Mechanism & Phytochemistry

1. Iridoids (plumericin, isoplumericin, fulvoplumierin) exert potent antimicrobial action against enteric bacilli and suppress inflammatory nitric oxide. 2. Lupeol and rubranonoside downregulate COX-2 and 5-LOX, reducing PGE2. 3. Quercetin and plumieride stimulate eNOS-mediated vasorelaxation.

Preparation & Dosage

Whole dried fallen flower corollas. Decoct gently 10-15 minutes. Dosage: 5-10 g daily in decoction. Concentrated extract: 1-2 g.

Appended Prescriptions

1. Lingnan Five Flowers Tea (Wu Hua Cha / 五花茶) with Lonicera, Chrysanthemum, Bombax, and Pueraria flower. 2. Summer Damp-Heat Dysentery Remedy with Pueraria root and Coptis.

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