Taxon: Marsilea quadrifolia L.

• Check PlantSearch database of Botanic Gardens Conservation International for possible non-NPGS germplasm.

A declared aquatic or terrestrial noxious weed and/or noxious-weed seed in these U.S. states (see state noxious weed lists), with links to state information or web documents:

CTª, NHª, OKª.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Common names:

• European water-clover   (Source: NPB State Noxweed OK [http://nationalplantboard.org/docs/summaries/oklahoma.pdf]) – English
  
• klöverbräken   (Source: Vara kulturvaxt namn OK) – Swedish
  

Economic importance:

• Environmental: ornamental   (fide Dict Gard)
  
• Weed   (in Asia fide Atlas WWeed)
  

More:

View ethnobotanical data from Duke's Phytochemical and Ethnobotanical Databases

Distributional range:

• EUROPE
  Middle Europe: Austria; Czechoslovakia; Germany; Hungary; Switzerland
  East Europe: Russian Federation - European part; Ukraine
  Southeastern Europe: Albania; Bulgaria; Former Yugoslavia; Italy; Romania
  Southwestern Europe: France; Portugal; Spain

• naturalized elsewhere

• also cultivated

References:

• Aldén, B., S. Ryman & M. Hjertson. 2009. Våra kulturväxters namn - ursprung och användning. Formas, Stockholm (Handbook on Swedish cultivated and utility plants, their names and origin).
• Encke, F. et al. 1984. Zander: Handwörterbuch der Pflanzennamen, 13. Auflage.
• FNA Editorial Committee. 1993–. Flora of North America.
• Food and Agriculture Organization of the United Nations (FAO). 2010. Ecocrop (on-line resource).
• Holm, L. et al. 1979. A geographical atlas of world weeds.
• Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening.
• Johnson, D. M. 1986. Systematics of the New World species of Marsilea (Marsileaceae). Syst. Bot. Monogr. 11:35.
• Liberty Hyde Bailey Hortorium. 1976. Hortus third.
• Mickel, J. T. & A. R. Smith. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88:1-1054. [mentions].
• National Plant Board. 2008–. National Plant Board federal and state quarantine summaries.
• Tutin, T. G. et al., eds. 1993. Flora europaea, second edition.

More:

Search AGRICOLA article citation database for citations referencing Marsilea quadrifolia.

Search NCBI's Entrez search engine for PubMed citations referencing Marsilea quadrifolia.

Search Biodiversity Heritage Library for historical publications referencing Marsilea quadrifolia.

Check other web resources for Marsilea quadrifolia L.:

• Flora Europaea: Database of European Plants (ESFEDS)
• Flora of North America: Collaborative Floristic Effort of North American Botanists
• ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
• AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
• Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.

Check other web resources for images:

• PlantSystematics.org
• Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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