Apiaceae
Hemlock waterparsnip
Sium suave
- Family
- Apiaceae
- Genus
- Sium
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Common names
By language (4)
- Chinese
- 泽芹, 澤芹, 細葉零餘子, 山藁本, 苏土藁本, 细叶零余子, 达乌里毒芹, 达乌里镰叶芹
- English
- Hemlock waterparsnip, Water parsnip, Hemlock water-parsnip, Hemlock water parsnip
- Japanese
- トウヌマゼリ
- Korean
- 개발나물
Synonyms
- Apium cicutifolia (J.F.Gmel.) Benth. & Hook.f. ex F.B.Forbes & Hemsl.
- Apium cicutifolium (Schrenk) Benth. & Hook.f. ex F.B.Forbes & Hemsl.
- Apium lineare (Michx.) Alph.Wood
- Cicuta dahurica Fisch.
- Cicuta davurica (Hoffm.) Fisch. ex F.Dietr.
- Critamus dauricus Hoffm.
- Drepanophyllum heterophyllum (Greene) Koso-Pol.
- Drepanophyllum lineare (Michx.) Koso-Pol.
- Falcaria dahurica DC.
- Sium californicum Baill.
- Sium cicutarium W.H.Baxter
- Sium cicutifolium Schrank
- Sium cicutifolium var. angustifolium Kom.
- Sium cicutifolium var. brevifolium Peck
- Sium cicutifolium var. carsonii Stevens
- Sium cicutifolium var. heterophyllum (Greene) Jeps.
- Sium cicutifolium var. latifolium Kom.
- Sium cicutifolium var. lineare H.Wolff
- Sium floridanum Small
- Sium formosanum Hayata
- Sium heterophyllum Greene
- Sium lineare Michx.
- Sium lineare var. intermedium Torr. & A.Gray
- Sium nipponicum Maxim.
- Sium nipponicum var. ovatum (Yatabe) Y.Yabe
- Sium ovatum Yatabe
- Sium rugosum Raf.
- Sium suave f. angustifolium (Komarov) Kitag.
- Sium suave f. carsonii Fassett
- Sium suave f. fasciculatum Fassett
- Sium suave f. latifolium (Komarov) Kitag.
- Sium suave f. nipponicum (Maxim.) Hiyama
- Sium suave f. suave
- Sium suave var. floridanum (Small) C.F.Reed
- Sium suave var. nipponicum (Maxim.) H.Hara
- Sium suave var. ovatum (Yatabe) H.Hara
- Sium tenuifolium Muhl.
- Sium turfosum H.Wolff
- Siumis heterophyla Raf.
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Alaska: native, Canada: native, Lower 48 states: native
Photos
FlowerPhoto: Laura J. Costello, CC BY 4.0, from iNaturalist 
FlowerPhoto: 曾昱承 Yu-Cheng Zeng, CC BY 4.0, from iNaturalist 
FlowerPhoto: Steven Lamonde, CC BY 4.0, from iNaturalist 
FlowerPhoto: Tom Scavo, CC BY 4.0, from iNaturalist 
Photo: KENPEI, CC BY-SA 3.0, from Wikimedia Commons 
Photo: naturalist charlie, CC BY 4.0, from iNaturalist 
Photo: KENPEI, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Paul Roots, CC BY 4.0, from iNaturalist 
Photo: Braden J. Judson, CC0, from iNaturalist 
Photo: Qwert1234, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Paul Roots, CC BY 4.0, from iNaturalist 
Photo: Qwert1234, CC BY-SA 3.0, from Wikimedia Commons
More in Sium
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.