1.
Herbarium specimen image of Melilotus altissimus Thuill., part of the collection of Naturalis Biodiversity Center
2.
Herbarium specimen image of Bidens cernua L., part of the collection of Naturalis Biodiversity Center
Herbarium specimen image of Narthecium ossifragum Huds., part of the collection of Naturalis Biodiversity Center
Herbarium specimen image of Veronica hederifolia subsp. hederifolia, part of the collection of Naturalis Biodiversity Center
Herbarium specimen image of Veronica longifolia L., part of the collection of Naturalis Biodiversity Center