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Wolffia Horkel.
Wolffia, Biota of North America Program (query database) [BONAP]

Wolffia columbiana Karst.
Wolffia columbiana, Aquatic and Wetland Vascular Plants of the Northern Great Plains [USGS]
Wolffia columbiana ; [GMBOT, 260]

Wolffia punctata Griseb.
Wolffia punctata ; [GMBOT, 260]

Wolffia papulifera C. H. Thompson
Wolffia papulifera ; [GMBOT, 260]


14.11.1998 (3)

References:
[BONAP]
A Synonymized Checklist of the Vascular Flora of the United States, Puerto Rico, and the Virgin Islands; A data base interface; BONAP U.S. Checklist - 1998; Provided by TAMU-BWG; Texas A & M Bioinformatics Working Group; Based on; Biota of North America Program
[GMBOT]
Robinson, Benjamin L., Fernald, Merrit 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
[USGS]
Northern Prairie Wildlife Research Center; http://www.npwrc.usgs.gov/index.htm


If you have corrections, comments or information to add into these pages, just send mail to Markku Savela
Keep in mind that the taxonomic information is copied from various sources, and may include many inaccuracies. Expert help is welcome.