Plantarum indigenarum et exoticarum icones ad vivum coloratae, oder, Sammlung nach der Natur gemalter Abbildungen inn- und ausländlischer Pflanzen, für Liebhaber und Beflissene der Botanik /.
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biodiversitylibrary.org/page/44260108
2010.04.07 Austria, Lower Austria, district Baden (Hoher Lindkogel near peak, 830 m AMSL).Flowering in march/april.This specimen is quite unusual as stem and leaves are reddish-brown: usually they come in an ordinary green (and this one too surely, later in its life, will have grown a green colour: I didn't check though).Common in its habitat.German name: Neunblttchen-ZahnwurzID: Fischer & al., Exkursionsflora (2008 3rd)
