National Plant Data Center, NRCS, USDA. Baton Rouge, LA 70874-4490 USA. http://plants.usda.gov
Reference for:
Betula X alpestris
Source:
Germplasm Resources Information Network (GRIN), 2007 - 2011
Acquired:
2011-01-01
Notes:
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/paper.pl?language=en
Reference for:
Betula X alpestris
Source:
Fagales of North America Update
Acquired:
2011-11-21
Notes:
Updated for ITIS by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS (2007-2010)
Reference for:
Betula X alpestris
Publication(s):
Betula X alpestris: Geographic Information
Geographic Division:
Jurisdiction/Origin:
Betula X alpestris: Comments
Comment:
Also includes the nothotaxon Betula ×alpestris var. ×sukaczewii (Soczava) Govaerts. The ITIS data structure does not currently support infraspecific hybrid nomenclature