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(First upload on June 9 2018. Last on August 3 2021) [ 日本語 | English ]

Sium suave Walter






Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Sium L. (ヌマゼリ)
Numazeri (ヌマゼリ, 沼芹, s.l.), water parsnip, hemlock waterparsnip
Sawazeri (サワゼリ, 沢芹)
Lifeform: perennial forb
Distribution: Asia, including Japan, and North America
Habitat: mesic sites, represented by wetlands
Involucral scale: present ⇔ Cicuta virosa: absent
Synonyms:

Sium suave Walter var. ovatum (Yatabe) H. Hara f. nipponicum (Maxim.) Hiyama
Sium nipponicum Maxim.

Sium suave Walter ssp. nipponicum (Maxim.) Sugim.

var. nipponicum (Maxim.) H. Hara (ヌマゼリ, s.s.)
Distribution: northeastern China - Korea - Japan
Leaflet: less than 10
var. ovatum (Yatabe) H. Hara (ヒロハヌマゼリ)
Synonyms:

var. nipponicum (Maxim.) H. Hara f. ovatum (Yatabe) Kitag.

var. suave (トウヌマゼリ), Hokkaido and Honshu
Habitat: mesic grasslands and wetlands
Leaflet: 7-17
Synonyms:

var. tenuissimum Kitag.
f. angustissimum (Kom.) Kitag.

索引

Sium suave in Hokkaido


ST1 ST2 ST3
[1] along Katsura Course in Nopporo Forest Park on July 17 2021. [2/3] in the Sarakito-omanai forest preserve for inspection of a planned wind power in Kamiyuchi, northern Hokkaido, on November 1 2017.

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