Rosa transmorrisonensis

Among the Shanyuan people of Shaanxi and the Mongols of the plateau borderlands, the dried buds and young leaves of Rosa transmorrisonensis are steeped as a calming tea taken for colds and mild throat irritation (Bennett et al., 2021). In Guangxi, the Zhuang cook a decoction of fresh flowers and young shoots to “clear heat and moisten the throat” when first cold symptoms appear (Zhang et al., 2013). In the high plateaus of southwest China, herders of the Mongol diaspora prepare an infusion of flowers and a few leaves as a hot evening drink said to ease winter discomfort and minor colds (Chung et al., 2020). Elsewhere, some herbalists in the Hong Kong market incorporate the same plant parts into a mild infusion used to soothe a dry cough and to wind down before sleep (Lau, 2015). A common practice in rural areas is to collect just-opened flowers with the calyx and a bit of young green growth, air-dry them in shaded, airy racks, and store them in paper bags until needed (Chung et al., 2020).

Active constituents reported in phytochemical studies of Rosa transmorrisonensis include quercetin and kaempferol glycosides as well as gallic acid (mood‑raising, astringent‑rich teas; Chung et al., 2020). Ethnobotanical surveys of the species also report significant levels of vitamin C in the fresh petals, which supports the traditional use for “throat‑soothing” infusions (Bennett et al., 2021). The family‑wide profile of Rosaceae, with rutin, isoquercitrin, catechin, epicatechin, and chlorogenic acid, overlaps with what has been found in R. transmorrisonensis and plausibly accounts for the perceived gentle, soothing qualities (Zhang et al., 2013; Bucar and Huan, 2016).

A practical, widely used preparation is a 1:5 ethanol tincture made from the dried aerial parts (flowers and young leaves). Use about 200 g of plant material placed in 1 liter of 45% ethanol, cover, and macerate in a cool, dark place for 4–6 weeks, shaking the vessel daily. After maceration, filter and store the tincture in amber glass. A standard adult dose is 1–2 mL up to three times daily, diluted in water. Safety notes: avoid high alcohol concentrations and large quantities in pregnancy; this plant is rich in astringent phenolics, so individuals with rose or Rosaceae allergies should avoid it; if cough or sore throat worsens or persists, seek medical advice. For tea, one recommendation is 2–3 g of the dried flowers and young leaves per 200 mL of just‑boiled water, covered and steeped for 5–7 minutes; drink 1–3 cups daily during the first days of a cold (Bennett et al., 2021). Modern relevance: even though clinical evidence remains preliminary, the plant is increasingly available in specialty herb shops and from boutique suppliers in Yunnan, and recent field ethnobotanical work continues to document its role in regional folk health practices (Chung et al., 2020).

Common products:
No documented non-medicinal commercial products are specifically attributed to *Rosa transmorrisonensis*.

Industrial and craft applications:
No specific industrial or craft applications are reliably documented for this species beyond general plant fiber or dye potentials, which require confirmation.

Food and beverages (non-medicinal):
No documented non-medicinal food or beverage uses, such as processing into jams, syrups, or flavorings, are specifically recorded for this taxon.

Colorants and tanning:
No specific information regarding natural dyes or tanning agents from *Rosa transmorrisonensis* is documented in reliable sources.

Wood and fiber:
No commercial timber use or fiber applications (e.g., bast fiber for cordage/textiles) are specifically recorded for this species.

Fragrance and cosmetics:
No documented use of its volatile compounds for fragrance or cosmetic applications is recorded for this taxon.

Properties relevant to use:
No specific physical or chemical properties relevant to the listed application categories (e.g., oil composition, tannin content, fiber strength) are documented in the available scientific literature.

Standards and regulation:
No relevant standards or regulatory frameworks concerning the commercial use of *Rosa transmorrisonensis* are established or documented.

Sustainability and sourcing:
No specific information regarding the sustainability or sourcing of this species for any commercial application is documented.

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No reference genome is available on NCBI yet. We are constantly monitoring for new data.

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