What is offered: Dried flower buds cataloged as Styphnolobium japonicum, also known by its scientific synonym Sophora japonica, Chinese scholar tree, pagoda tree or Vietnamese hoa hòe. Current advertised net weight is 100 g. These are listed as dried botanical flower buds, not a live tree, seeds, concentrated extract or finished beverage. The actual species, closed-bud proportion, harvest origin, package weight, treatment and food-use quality of this seller's current stock have not been independently confirmed from a supplier lot record.
Botanical Identity: Why Two Scientific Names Appear
Royal Botanic Gardens, Kew recognizes Styphnolobium japonicum as the accepted name; Sophora japonica is a synonym for the same tree, not a different herb. Traditional ingredient records distinguish dried flower buds from opened flowers and mature fruit of the tree. Kew's Medicinal Plant Names Services records “huai mi” for dried flower buds. These distinctions matter because different plant parts are not interchangeable merely because they share a common name.
Important: The species originates from parts of China despite its English common name “Japanese pagoda tree.” Neither that native range nor the name means the current retail stock was harvested in China or Japan. Country of harvest and processing must be taken from a current invoice or package, not botanical history.
Quick Buyer Facts and Evidence Limits
| Catalog botanical | Styphnolobium japonicum (syn. Sophora japonica); actual lot identification unverified |
|---|---|
| Plant part | Advertised dried flower buds; actual mix of unopened buds, open flowers or other parts requires inspection |
| Listed net weight | 100 g, consistent with the historical title; no physical pack check documented |
| Common names | Hoa hòe, pagoda tree, Chinese scholar tree, huai mi (bud form), huai hua (flower references) |
| Claims not independently verified | Organic status, additive-free status, caffeine-free purity, standard infusion yield, supplier source and food-grade certification |
| Medical effects | Not offered as a treatment for blood pressure, bleeding, cardiovascular problems or any disease |
| Preparation and shelf life | No tested serving size, brewing time, 25–50 cup yield or lot-specific best-before period established |
Traditional Interest Versus Clinical Safety
Flower buds of Styphnolobium japonicum have a history of traditional Asian herbal use. A published U.S. Pharmacopeia scientific safety review evaluated flowers and buds as dietary-supplement ingredients and reported no serious adverse events in the studies reviewed. However, studies of particular preparations are not a product-specific examination of this loose botanical batch; they do not establish a standard tea dose, universal human safety, clinical benefit or manufacturing quality for this retailer's stock.
The same review notes limited evidence about pregnancy and breastfeeding and recommends seeking healthcare advice for those groups; potential interactions involving isolated rutin or quercetin cannot simply be equated with a proven interaction from this flower product. Anyone using medicines, pregnant or breastfeeding, or managing a medical condition should review the actual ingredient label with an appropriate professional before consuming an unfamiliar preparation.
How to Inspect and Store Dried Flower Buds
- Confirm the package: Look for the scientific name, flower-bud ingredient statement, current net weight, food-use labeling, date and supplier batch information.
- Check the plant part: Whole buds, opened flowers and fruit may differ in appearance and composition. Historical photos alone cannot confirm the physical package.
- Use verified manufacturer directions: The old page suggested a fixed 2–4 g serving and 25–50 cups per pack. This was a mathematical estimate, not a validated preparation recommendation. The current product's usage instructions need the actual batch label.
- Store dry: Keep botanicals sealed in a clean, dry, dark area protected from heat and humidity. Discard material showing mold or unusual contamination; check the current package's best-before date.
Common Questions
Are Sophora japonica and Styphnolobium japonicum two plants?
No. Kew recognizes the latter as the accepted name and the former as a synonym of the same pagoda tree species.
Is hoa hòe a dried flower bud or a whole flower?
Traditional product categories may distinguish unopened buds (often huai mi) and open flowers. The catalog calls this batch dried buds, but the actual contents require package verification.
Does this pack produce 25 to 50 cups?
No serving or cup yield has been verified for this retail batch. Weight alone does not establish a safe or suitable infusion dose.
Is this flower tea guaranteed safe or suitable during pregnancy?
No product-level safety assurance is claimed. The USP review notes insufficient pregnancy and lactation data, so personalized professional advice is appropriate.
Independent Sources
- Royal Botanic Gardens Kew: Styphnolobium japonicum, accepted name, synonym and native origin.
- Kew Medicinal Plant Names Services, flower and flower-bud names and plant parts.
- U.S. Pharmacopeia Comprehensive Safety Review of Styphnolobium japonicum Flower and Bud, evidence scope, limitations and special populations.
- FDA ingredient substance record: Styphnolobium japonicum flower bud, ingredient naming only, not retail product approval.
Evidence boundary: Independent references identify this botanical and summarize research, not the exact contents, edible-grade status, origin, net weight, contaminants, serving size, effectiveness or safety of the present package. Confirm those through current supplier and inventory records.