Zanthoxylum piperitum f. brevispinosum (English name) Zanthoxylum piperitum f brevispinosum

...The fruit and young leaves are a traditional Japanese spice, historically called hajikami (shochu) (illustration). It is a deciduous shrub of the Rutaceae family that grows wild in mountainous areas from Hokkaido to Kyushu, and is also planted in residential areas. It branches well and grows to a height of 2-3m. The leaves are compound, with 11-19 leaflets arranged in an odd pinnate pattern, 5-15cm long, and alternate on the stem. The leaflets are elongated and oval with wavy edges, 1-3cm long. There is a pair of thorns at the base of the leaf. It is dioecious, and in spring, flower spikes appear at the base of the leaves, and many small yellow-green flowers bloom. ...

*Some of the terminology that mentions "Zanthoxylum piperitum f.brevispinosum" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…果実および若葉は日本古来の香辛料で，古名をハジカミ(椒)という（イラスト）。北海道から九州までの山地に自生するミカン科の落葉低木で，人家にも植えられる。よく枝分れして高さ2～3mになる。葉は11～19枚の小葉が奇数枚羽状に集まる複葉で，長さ5～15cm，茎に互生する。小葉は縁に波のある細長い卵形で，長さ1～3cm。葉の付け根には1対のとげがある。雌雄異株で，春に葉の付け根に花穂がつき，多数の黄緑色の小花が咲く。…

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