dog's mercury
Mercurialis perennis latin

Since Mercurialis perennis is highly poisonous, it was named "dog's" mercury (in the sense of "false" or "bad").

They are most successful on slightly acid soils; the same niche in alkaline conditions may be occupied by other species such as Mercurialis perennis.

Dog's Mercury (Mercurialis perennis)

Dog's-mercury (Mercurialis perennis)

The ground flora is indicative of the calcareous nature of the site, with Dog's Mercury (Mercurialis perennis) being locally dominant.

Mercurialis perennis, commonly known as dog's mercury, is a woodland plant found in much of Europe, but almost absent from Ireland, Orkney and Shetland.

Beneath them are Dog's Mercury (Mercurialis perennis) and Common Bluebell (Hyacinthoides non-scripta).

The three woods have a diverse woodland floor vegetation, which is dominated by either Dog's Mercury Mercurialis perennis or Brambles Rubus spp.

Woodlands create sunny clearings and rides, but avoid using clearings that are dominated by other plants such as Dogs Mercury (Mercurialis perennis), Common Bluebell, and vigorous grasses.

They typically occur in rich humus in broadleaf or conifer woodland, in northern Europe often among nettles (Urtica dioica) or dog's mercury (Mercurialis perennis).

In the United Kingdom, colonies of Helicobasidium purpureum have been found on the living stems of dog's mercury (Mercurialis perennis and stinging nettle (Urtica dioica).

NVC community W8 (Fraxinus excelsior - Acer campestre - Mercurialis perennis woodland) is one of the woodland communities in the British National Vegetation Classification system.

These include Pinus sylvestris, Quercus, Ulmus glabra, Alnus glutinosa, Mercurialis perennis, Koenigia islandica, Helianthemum, Cannabis sativa/ Humulus lupulus, and Anthoceros laevis.