Convallaria distribution map. 
Legend:C. majalis L.
C. keiskei Miq. (syn. C. majalis var. keiskei (Miq.) Makino)
C. pseudomajalis W.Bartram (syn. C. montana Raf., C. majalis var. montana (Raf.) H.E.Ahles)
Own work(own work by uploader based on)  

Convallaria at the World Checklist of Selected Plant Families (WCSP)
Meusel Hermann, Jager E., Weinert E. 1965. Vergleichende chorologie der zentraleuropaischen flora. VEB Gustav Fischer Verlag, Jena
USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. URL: http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?454360 (08 June 2008)
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