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Wu Zhu Yu fruit is a small aromatic capsule-like drug from a Rutaceae tree; it is neither culinary Sichuan pepper nor the unrelated Evodia names sometimes used in trade. Examine the fruit cluster, leaf form, and dried surface together, and check a Latin label. The traditional source classifies it as very hot and potentially toxic, so the red-brown appearance must prompt caution, not curiosity tasting. Do not make a home tincture, essential-oil preparation, or high-dose decoction. Retain supplier, species, and processing records; reject material with mold, mixed fruits, or no traceability. Combining a warming herb with ginger or cinnamon in an old text does not establish a safe personal ratio. Before any botanical lesson, distinguish the authenticated Evodia source from ornamental or culinary Rutaceae. The plant’s compound leaves and fruit clusters are better identification cues than the trade name alone. A medicinal specimen should remain in a controlled container, with gloves used for handling if powders or broken fruit irritate skin. Do not store it beside food spices where accidental mixing could occur. Even a small accidental exposure can be concerning for a child; keep it locked away and contact poison services if ingestion occurs. A teaching specimen should be sealed and separately labelled “not for tasting.” Retain the Latin name and toxicity warning with every image. Never store this specimen with cooking spices or a household herb cabinet. Its traditional “mildly toxic” notation is a meaningful safety flag, and the page is for supervised botany study only. Any ingestion concern should be discussed promptly with a poison service.