[DVF] Den Virtuella floran http://linnaeus.nrm.se/flora/welcome.html; Ett projekt vid Naturhistoriska riksmuseet (Stockholm, Sweden).; Even for non-Swedish speaker, the distribution maps on species are nice (map buttons "Norden" and "Norra halvklotet")
[GMBOT] Robinson, Benjamin, Fernald, Lyndon, 1908
Gray's New Manual of Botany (7th edition); A Handbook of the Flowering Plants and Ferns of the Central and Northeastern United States and adjacent Canada; American Book Company
[GNSP] Wielgorskaya, 1995
Dictionary of generic names of seed plants
If you have corrections, comments or
information to add into these pages, just send mail to
Keep in mind that the taxonomic information is copied from various sources, and may include many inaccuracies. Expert help is welcome.