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Published In: Species Plantarum 1: 558. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: HARALD RIEDL and YASIN J. NASIR
Contributor Institution: Naturhistorisches Museum, Botanische Abteilung, Wien, Austria.


National Herbarium, Pakistan Agricultural Research Council, Islamabad, Pakistan.

General/Distribution: A widespread genus of about 40 species distributed throughout both hemispheres.
Comment/Acknowledgements: No species of Caltha are of any economic u se. Caltha palustris L. is said to be poisonous. It is widespread in temperate arctic Europe, Asia & N. America but is not represented in Pakistan.


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Perennial plants with undivided leaves. Flowers simple or more often in a reduced inflorescence. Perigonium simple, composed of 5-10 petaloid sepals. Petals (nectaries) lacking. Stamens and carpels numerous, arranged in irregular numbers on a flat receptacle. Carpels free from each other, many seeded. Mature fruits developed as follicles. Seeds compressed obovoid or oblong, sometimes asymmetrical.

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1.Pollen grains tricolpate, broadly ellipsoidal. Sepals yellow, rarely white
Caltha palustris
1.Pollen grains pantoporate, globose. Sepals white
Caltha alba
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