Simaroubaceae

Nigaki

Picrasma quassioides (D.Don) Benn.

Family: Simaroubaceae
Genus: Picrasma

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Nigaki (Picrasma quassioides) — FlowerPhoto: Guy Taseski, CC BY 4.0, from iNaturalist

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Common names

By language (5)

Chinese: 苦木, 苦樹, 苦木叶, 苦木根, 苦树, 苦树皮, 苦树（苦木）, 苦楝树
English: Nigaki
Japanese: ニガキ, 苦木
Korean: 소태나무
Persian: چوبتلخ

Synonyms

Nima quassioides Buch.-Ham. ex A.Juss.
Picrasma ailanthoides (Bunge) Planch.
Picrasma ailanthoides var. dasycarpa
Picrasma japonica A.Gray
Picrasma quassioides f. dasycarpa (Kitag.) Kitag.
Picrasma quassioides f. glabrescens (Pamp.) Kitag.
Picrasma quassioides var. dasycarpa (Kitag.) S.Z.Liou
Picrasma quassioides var. glabrescens Pamp.
Picrasma quassioides var. quassioides
Rhus ailanthoides Bunge
Simaba quassioides D.Don
Zwingera quassioides Spreng.

Flowers

In flower: April to May (from 7 flowering iNaturalist observations worldwide)

Photos

FlowerPhoto: Guy Taseski, CC BY 4.0, from iNaturalist
Photo: Bruce Marlin, CC BY-SA 2.5, from Wikimedia Commons
Photo: りなべる, CC BY 4.0, from iNaturalist
Photo: Qwert1234, CC BY-SA 3.0, from Wikimedia Commons
Photo: りなべる, CC BY 4.0, from iNaturalist
Photo: Qwert1234, CC BY-SA 3.0, from Wikimedia Commons
Photo: CYL, CC BY 4.0, from iNaturalist
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons
Photo: WATANABE Hitoshi 渡辺仁, CC BY 4.0, from iNaturalist
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons
Photo: りなべる, CC BY 4.0, from iNaturalist
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons

More in Picrasma

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.