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Petasites fragrans : ウィキペディア英語版 | Petasites fragrans
''Petasites fragrans'' (Winter Heliotrope; syn. ''Tussilago fragrans'' Vill.) is a medicinal plant and ornamental plant. ==Description== This perennial grows from deep rhizomes.〔Martin, W.K. 1965. ''The Concise British Flora in Colour.'' Ebury Press and Michael Joseph〕 The leaves are large, up to 20cms across and stalked with small regular teeth. The erect flower-heads grow in short racemes on stems up to 25cms long with a few scale-leaves. The florets are pinkish-mauve and appear in December and January.〔Parnell, J. and Curtis, T. 2012. ''Webb's An Irish Flora''. Cork University Press. ISBN 978-185918-4783〕〔Clapham, A.R., Tutin, T.G. and Warburg E.F. 1968. ''Excursion Flora of the British Isles''. Cambridge University Press. ISBN 0 521 04656 4〕 Other species to be found in Ireland and Great Britain: ''Petasites hybridus'' (L.) P.Gaertner, B. Meyer & Scherb and ''Petasites albus'' (L.) Gaertner.〔
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