1.
Herbarium specimen image of Poa palustris L., part of the collection of Naturalis Biodiversity Center
2.
Herbarium specimen image of Ribes nigrum L., part of the collection of Naturalis Biodiversity Center
Herbarium specimen image of Scleranthus perennis L., part of the collection of Naturalis Biodiversity Center
Herbarium specimen image of Symphytum officinale 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 Vicia villosa Roth, part of the collection of Naturalis Biodiversity Center
Herbarium specimen image of Pimpinella saxifraga L., part of the collection of Naturalis Biodiversity Center
Herbarium specimen image of Erucastrum gallicum O.E.Schulz, part of the collection of Naturalis Biodiversity Center
Herbarium specimen image of Rubus poliothyrsus A.Beek, part of the collection of Meise Botanic Garden
Flowchart of study population.