Senna garrettiana

Living plant material from Acacia confusa is traditionally prepared as a fresh poultice, an infusion for washing, and a decoction for intestinal parasites and fever in Taiwan and southern China (Li, 1996; Wu et al., 2002; Su, 2015). In southern Taiwan (Taitung, Hualien), a fresh leaf–bark paste is applied to cuts and burns to reduce pain and speed healing (Li, 1996). Rural communities in the Hengchun peninsula and villages around Taitung routinely crush the leaves and young stems for a warm infusion or decoction, strained and taken as a bitter “worm tea” for nematodes and a “cold tea” to break fevers, with the unheated infusion serving as a wash for itchy rashes and inflamed skin (Su, 2015; Wu et al., 2002). Cantonese and Hakka communities in Hong Kong and New Territories historically used a decoction of dried bark and roots to treat dysentery, and bark infusions were valued as an eyewash for conjunctivitis (Li, 1996; Kaneshiro et al., 2008).

A concise “worm tea” decoction uses roughly 3 g of young leaf and stem dried, or 10 g fresh, boiled gently in 500 mL water for 10–15 minutes, cooled, strained, and taken 1–2 times daily for 3–5 days (Li, 1996). Avoid in pregnancy, do not give to small children or the dehydrated, and stop if abdominal cramping or marked diarrhea occurs. For wounds, a fresh leaf–bark poultice uses 10–20 g crushed material held against the area for 10–20 minutes, repeating 2–3 times daily until clean and dry, monitoring for irritation and discontinuing if inflammation worsens (Li, 1996; Wu et al., 2002). Do not drink poultice fluid.

Catechin- and proanthocyanidin-rich tannins are abundant in the bark and leaf, correlating with astringent, wound-tightening effects (Wu et al., 2002). The bark contains significant flavonoids and gallotannins, and roots yield saponins and a distinctive alkaloid (N-methyltryamine), together supporting the traditional anti-inflammatory and antiparasitic roles (Kaneshiro et al., 2008; Su, 2015).

Clinical interest is growing for the potent free-radical scavenging activity and antimicrobial effects, but today the plant is primarily grown for reforestation and timber, with only small, locally sold wildcrafted preparations still used in rural settings (Kaneshiro et al., 2008; Wu et al., 2002).

Common products:
Flavoring ingredient and food product based on mature pod pulp of Senna garrettiana, used in Thai cuisine as a local alternative to tamarind.

Food and beverages (non-medicinal):
The soft pulp from mature pods provides acidity and fruity flavor and is incorporated into sauces, condiments, soups, and rice dishes; it is also used to prepare a sour drink. Commercial products include bottled pulp and concentrated syrups. Pod pulp can be processed into powder or paste for food manufacturing, and as a beverage base (e.g., bottled drink) for direct consumption. Fruit pulp is used to produce sweet and sour pastes, sauces, syrups, and candies.

Colorants and tanning:
Not documented.

Wood and fiber:
Not documented.

Industrial and craft applications:
Not documented.

Fragrance and cosmetics:
Not documented.

Properties relevant to use:
Not documented.

Standards and regulation:
Not documented.

Sustainability and sourcing:
Not documented.

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No subspecies added yet.

No variety added yet.

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No forms added yet.

No germination or propagation data was added yet.

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

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