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Galeopsis bifida Boenn. (bifid hemp-nettle)
http://www.bioimages.org.uk/HTML/P3/P34474.HTM
Galeopsis bifida Boenn. (bifid hemp-nettle)photo
Galeopsis ladanum
http://crdp.ac-besancon.fr/ressourc/flore/flore/Lamiaceae/photos/galeopsis_ladanum_20.jpg
photo
Galeopsis pyrenaica
http://www.pirineodearagon.com/flora/web_flora/paginas/GALEOPSIS_PYRENAICA.HTML
photo
Galeopsis segetum
http://www.kulak.ac.be/facult/wet/biologie/pb/kulakbiocampus/buiten-kulak/lage_planten/Galeopsis%20s
photos
Hemp-nettle (Galeopsis tetrahit)
http://www.ct-botanical-society.org/galleries/galeopsistetr.html
Photo and description of Galeopsis tetrahit
Hybridization rates in Natural Population of Galeo
http://mendel.eg.umu.se/pages/exjobb/hybridization.pdf
Article
Photo/image of Large Hemp-Nettle (Galeopsis specio
http://www.biopix.dk/Photo.asp?PhotoId=1905&Text=1
BioPix: Photo of Galeopsis speciosa (Hamp-hanekro).
PLANTS National Database - Galeopsis bifida
http://plants.usda.gov/cgi_bin/topics.cgi?earl=plant_profile.cgi&symbol=GABI3
Galeopsis bifida profile and distribution in the U.S.
PLANTS National Database - Galeopsis ladanum
http://plants.usda.gov/cgi_bin/topics.cgi?earl=plant_profile.cgi&symbol=GALA
Plant profile and distribution in the U.S.
Red Hemp-Nettle
http://www.arkive.org/species/ARK/plants_and_algae/Galeopsis_angustifolia/
Photos and description of Galeopsis angustifolia, commonly known as red hemp-nettle
Species factsheet for Galeopsis pyrenaica
http://eunis.eea.eu.int/species-factsheet.jsp?idSpecies=175130&idSpeciesLink=175130&expand=t
Biological Diversity, Biodiversity, Clearing-House Mechanism, CHM