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(Upload on November 26 2008) [ 日本語 | English ]

Euphorbia jolkinii Boiss.






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

Euphorbiaceae


More than 7500 species in ca 335 genera
Major distributional areas: (sub-)tropical regions
Morphological characteristics: trimerous reproductive organs
Many species are poisonous, because of producing euphorbine
Acalypha L. (エノキグサ)
Daphniphyllum Blume (ユズリハ)
Euphorbia L. (トウダイグサ)
Mallotus Lour. (アカメガシワ)
Ricinus L. (トウゴマ)
Triadica/seb Loour. (ナンキンハゼ)

Engler's syllabus (エングラー体系)

Euphorbia L. (トウダイグサ)


Hokkaido
Three or four native species
E. ebracteolata Hayata (マルミノウルシ)
E. adenochlora Morren et Dence (ノウルシ)
E. sieboldiana Morren et Dence (ナツトウダイ)
E. tsukamotoi Honda (ヒメナツトウダイ), syn. E. sieboldiana var. montana Tatew.
Exotics
E. cyparissias L. (マツバトウダイ)
E. marginata Pursh (ハツユキソウ)
E. humifusa Willd. ex Schltdl. (= Chamaesyce humifusa (Willd. ex Schltdl.) Prokh.) (ニシキソウ)
E. peplus L. (チャボタイゲキ)
E. supina Raf. (= Chamaesyce maculata (Raf.) Moldenke) (コニシキソウ)
E. hypericifolia L. (ユキハナソウ)

Euphorbia jolkinii Boiss.


索引

Iwataigeki (イワタイゲキ, 岩大戟), Jolkin spurge
Life form: perennial forb
Distribution: Korea- Japan (central Honshu - Ryukyu) - Taiwan
Habitat: rocky coast

ST1 ST2
[1/2] at a seacoast in Kochi Prefecture, Shikoku, in April 1985.

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