虎杖

Chinese

tiger cane, walking stick
trad. (虎杖) 虎 杖
simp. #(虎杖) 虎 杖

Pronunciation

Noun

虎杖

  1. (traditional Chinese medicine) Japanese knotweed (Reynoutria japonica, syn. Polygonum cuspidatum, an herb used as a natural laxative)

Synonyms

Dialectal synonyms of 虎杖 (“Japanese knotweed”) [map]
Variety Location Words
Formal (Written Standard Chinese) 虎杖
Taxonomic name 虎杖
Northeastern Mandarin Taiwan 虎杖
Cantonese Hong Kong 虎杖
Gan Lichuan 酸梗
Southern Min Xiamen 血三七

Descendants

Sino-Xenic (虎杖):
  • → Korean: 호장(虎杖) (hojang)

Japanese

Kanji in this term
虎 杖
いたどり
Grade: S Jinmeiyō
jukujikun

Etymology

Uncertain. One explanation is that it is a blend of 痛(いた)み (itami, “pain”) + 取(と)り (tori, “removal”); alluding to the plant's medicinal value. The tori changes to dori as an instance of rendaku (連濁).

The kanji is an instance of jukujikun (熟字訓).

Pronunciation

  • (Tokyo) いたどり [ìtádórí] (Heiban – [0])
  • (Tokyo) いたどり [ìtáꜜdòrì] (Nakadaka – [2])
  • IPA(key): [ita̠do̞ɾʲi]

Noun

虎杖(いたどり) or 虎杖(イタドリ) • (itadori) 

  1. Japanese knotweed (Reynoutria japonica, syn. Polygonum cuspidatum)
    Synonym: 酸模 (sukanpo)

Usage notes

As with many terms that name organisms, this term is often spelled in katakana, especially in biological contexts (where katakana is customary), as イタドリ (itadori).

See also

  • 虎杖根(こじょうこん) (kojōkon)
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