Chinese prickly-ash
Zanthoxylum simulans
A thorny East Asian shrub whose reddish berries yield Sichuan pepper
Chinese prickly-ash is a thorny East Asian shrub and one of the plants harvested for Sichuan pepper. Native to China, Taiwan, and South Korea, it bears small reddish-brown berries that split open to reveal shiny black seeds.
- One of the plant species harvested to produce Sichuan pepper.
- Native to central and southern China, South Korea, and Taiwan.
- Grows as a prickly shrub or small tree up to seven metres tall.
- Produces reddish-brown berries that split to reveal black seeds.
What is Chinese prickly-ash?
Chinese prickly-ash is a spreading perennial shrub or small tree reaching up to seven metres in height. Belonging to the rue family, Rutaceae, the plant features stems and leaf stalks armed with short prickles, alongside prominent knobs on its branches. Each compound leaf holds between seven and eleven leaflets. The bush produces delicate clusters of tiny flowers that measure four to five millimetres across. These blooms give way to rough, reddish-brown berries that split open at maturity to release dark black seeds. Its aromatic profile contains essential oils including limonene, linalool, geraniol, myrcene, alpha-terpineol, and 1,8-cineole.
Where does Chinese prickly-ash come from?
Chinese prickly-ash is indigenous to East Asia, where it grows naturally across South Korea, Taiwan, and central and southern China. The species is divided into two recognized subspecies. The primary subspecies occurs throughout all three of these regions, while a separate subspecies named calcareum is localized to the Zhejiang province of eastern China. Throughout its home range, the plant is recognized as one of the specific botanical sources collected to produce Sichuan pepper.
What does Chinese prickly-ash taste like?
The natural scent and character of this plant stem from its rich mixture of aromatic compounds. Chemical analysis reveals that its volatile oils contain limonene, linalool, geraniol, myrcene, alpha-terpineol, and 1,8-cineole. These constituents give the plant and its berries their fragrant quality. Because of these distinct aromatic properties, the species is harvested across its native territory to produce the seasoning known as Sichuan pepper.
How Chinese prickly-ash is grown and processed
This plant develops as a wide shrub or small tree that can reach seven metres in height. It features compound leaves measuring seven to over twelve centimetres in length, lined with sharp prickles along the stems and petioles. Distinctive woody knobs form along older branches. Flowers appear in slender clusters, each measuring four to five millimetres across. After flowering, the plant forms textured reddish-brown berries three to four millimetres wide, which split apart when ripe to discharge their inner seeds.
Chinese prickly-ash, drawn
Questions people ask about Chinese prickly-ash
Where is Chinese prickly-ash native to?
The plant is native to East Asia. It grows naturally across southern and central China, South Korea, and Taiwan, with one distinct subspecies found in Zhejiang province.
What does the Chinese prickly-ash plant look like?
It is a spreading shrub or small tree reaching seven metres in height. The branches feature woody knobs and sharp spines, bearing pinnate leaves and small reddish-brown berries.
How is Chinese prickly-ash used as a spice?
The plant is one of the specific botanical species harvested to produce Sichuan pepper. Its small, rough reddish-brown berries split open upon maturity to expose shiny black seeds.
What aromatic compounds does this plant contain?
The plant contains several key volatile compounds that define its natural aromatic profile. These essential oil constituents include limonene, linalool, geraniol, myrcene, alpha-terpineol, and 1,8-cineole.
Good reading and sources
- Zanthoxylum simulans on WikipediaEncyclopedia
- More photos on Wikimedia CommonsPhotos and video
- Wikidata recordOpen data
The facts on this page come from the Wikipedia article "Zanthoxylum simulans", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryMasala rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes. Names, strengths and customs differ from one grower, kitchen or shop to the next. Traditional and medicinal uses are described as tradition, never as medical advice, and none of this is a substitute for a doctor. If something is wrong, tell us. Last refreshed 2026-10-04.
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