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Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily
HOME > Plant list (植物リスト) > Urticaceae (イラクサ科)
[Engler's syllabus (エングラー体系)]Boehmeria Jacq. (カラムシ)Elatostema J. R. Forst. et G. Forst. (ウワバミソウ)Laportea Gaudich. (ムカゴイラクサ)Oreocnide Miquel (ハドノキ)Pilea Lindl. (ミズ)Urtica L. (イラクサ) |
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ca 100 species Lifeform: herbaceous perennials, shrubs and short trees Distribution: native to Asia and North America Species in JapanB. arenicola Satake (ハマヤブマオ)B. biloba Wedd. (ラセイタソウ) B. boninensis Nakai (オガサワラモクマオ) B. densiflora Hook. et Arn. (ヤナギバモクマオ) B. dura Satake (カタバヤブマオ) B. egregia Satake (シマナガバヤブマオ) B. formosana Hayata (タイワントリアシ), Yakushima - Ryukyu B. gracilis C. H. Wright (クサコアカソ) B. hatusimae Satake (ササグリヤブマオ) |
B. hirtella Satake (ケナガバヤブマオ) B. holosericea Blume (ニオウヤブマオ) B. izuosimensis Satake (オオシマヤブマオ) B. japonica (L. f.) Miq. (ヤブマオ, s.l.)
var. japonica (トガリバヤブマオ) B. minor Satake (コヤブマオ) B. nakaiana Satake (サイシュウナガバヤブマオ) B. nakashimae Yahara (ゲンカイヤブマオ) B. nivea (L.) Gaudich. (ナンバンカラムシ) B. pilosiuscula (Blume) Hassk. (ヒラバヒメマオ) B. platanifolia (Maxim.) Franch. et Sav. ex C. H. Wright (メヤブマオ) |
B. quelpaertensis Satake (タンナヤブマオ) B. robusta Nakai et Satake (マルバヤブマオ), leaf = large and thin B. sieboldiana Blume (ナガバヤブマオ) B. silvestrii (Pamp.) W. T. Wang (アカソ) B. spicata (Thunb.) Thunb. (コアカソ) B. taquetii Nakai (サイシュウアカソ) B. tikusiensis Satake (ヤブマオモドキ) B. tiliifolia Satake (ムラダチヤブマオ) B. tosaensis Miyazaki et H. Ohba (リュウノヤブマオ) B. villigera Satake (クマヤブマオ) B. wattersii (Hance) B. L. Shih et Yuen P. Yang (ナガバヒメマオ) B. yaeyamensis Hatus. (ヤエヤマラセイタソウ) |
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E. cyrtandrifolium (Zoll. et Moritzi) Miq. (クサダチキミズ) E. densiflorum Franch. et Sav. ex Maxim. (トキホコリ), annual, south to Miyagi Prefecture E. edule C. B. Rob. (ヒロハノキミズ) E. involucratum Franch. et Sav. (ウワバミソウ) E. japonicum Wedd. (ヒメウワバミソウ), south to Kanto District |
E. laetevirens Makino (ヤマトキホコリ) E. lineolatum Wight (ホソバノキミズ, s.l.) var. majus Wedd. (ホソバノキミズ) E. microcephalanthum Hayata (タマザキウワバミソウ)E. obtusum Wedd. var. trilobulatum (Hayata) W. T. Wang (ヒメミズ) |
E. oshimense (Hatus.) T. Yamaz. (アマミサンショウソウ) E. platyphylloides B. L. Shih et Yuen P. Yang (ランダイミズ) E. suzukii T. Yamaz. (クニガミサンショウヅル) E. yakushimense Hatus. (ヒメトキホコリ) E. yonakuniense Hatus. (ヨナクニトキホコリ) |
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L. bulbifera (Siebold et Zucc.) Wedd. (ムカゴイラクサ) L. cuspidata (Wedd.) Friis (ミヤマイラクサ), south to southwestern Hokkaido |
f. bulbifera (Kitam.) Fukuoka et Kurosaki (コモチミヤマイラクサ) |
L. interrupta (L.) Chew (アコウクワクサ) L. ruderalis (G. Forst.) Chew (ハマイラクサ) |
| O. frutescens (Thunb.) Miq. (イワガネ) |
O. pedunculata (Shirai) Masam. (ハドノキ) |
O. × intermedia (Hatus.) Tateishi (ハドイワガネ) |
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P. brevicornuta Hayata (アリサンミズ) P. japonica (Maxim.) Hand.-Mazz. (ヤマミズ) P. kiotensis Ohwi (ミヤコミズ) |
P. mongolica Weddell (アオミズ) P. peploides (Gaudich.) Hook. et Arn. (コケミズ) P. petiolaris (Sieb. et Zucc.) Bl. (ミヤマミズ) |
P. pseudopetiolaris Hatus. (コミヤマミズ) P. pumila (L.) A. Gray var. hamaoi (Makino) C. J. Chen (ミズ) P. sohayakiensis Kitam. (ソハヤキミズ) |
| Height (cm) | Teeth | Leaf apex | Stem | Inflorescence stalk | Male flower | |
| P. pumila (ミズ) | 20-40 | obtuse | non-caudate | green-browny | short | non-red |
| P. mongolica (アオミズ) | 30-50 | acute | caudate | green | long | partially red |
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All native species are distributed in Hokkaido U. thunbergiana Sieb. et Zucc. (イラクサ), 40-80 cm tall, temperate regions U. platyphylla Wedd. (エゾイラクサ) |
U. laetevirens Maxim. (コバノイラクサ) U. angustifolia Fischer (ホソバイラクサ)
var. shikokiana (Makino) Ohwi (ナガバイラクサ), less stimulose, in Korea and south to the Chubu District of Japan |
U. dioica L. (セイヨウイラクサ) [exotic to Japan] U. urens L. (ヒメイラクサ) [exotic to Japan] |