Lisbjerg N. of Aarhus. Grassland along roadside with Dactylis glomerata, Veronica chamaedrys, Agrostis tenuis, Cirsium arvense and Plantago lanceolata.
"Konstantinsborg at Aarhus. In humid beechwood with Acer pseudoplatanus and Fraxinus exelsior; dominating herbs: Mercurialis perennis, Carex sylvatica and Melica uniflora."
Tebstrup Sö, lake N. Horsens, covering large areas together with Helodea canadense, Potamogeton obtusifolium, Myriophyllum spicatum, Equisetum fluviatile and Scirpus lacustris.
Cultivated. Cult n° : 1976-SL-11528. Source : Rhizome collected by S. Laegaard. Origine : Poland : Tatra Mts, at Morskie Oko, the upper lake. S-exp.gnejs. 1500m. October 19, 1976. Leg : S. Laegaard 11528
Sattrup Mose, bog 10 Km N of Horsens. In marginal field together with Arabidopsis thaliana, Geranium molle, G. pusillum, Holcus lanatus, Myosotis arvensis and Festuca pratense.
Dalbyover S. of Hadsund. Margin of wood with Fagus sylvestris, Ulmus glabra, Crataegus monogyna, Sorbus aucuparia, Equisetum sylvaticum, Ranunculus repens and Viola canina.
Sonderskov, S. of Grenaa. In humid Fraxinus exelsior wood with Mercurialis perennis, Paris quadrifolia, Primula vulgaris, Ranunculus ficaria, Anemone nemorosa and Rubus fruticosus.
NW of Eckernförde, Karlsminde. Weed in beet-field together with Urtica urens, Polygonum aviculare, Solanum nigrum, Chamomilla recutita and Galinsoga ciliata.
