The Sarmatic mixed forests ecoregion stretches from northwestern Europe to the Ural Mountains in Russia and represents one of the broadest longitudinal expanse of any ecoregion of the Earth. Dominant canopy species include Scots pine and Norway spruce (Picea abies) intermixed with some broadleaf species such as (Quercus robur). There are a number of shrubs, wildflowers, grasses and mosses that inhabit the mid-tier and forest floor. Common low-growing shrubs include Bilberry (Vaccinium myrtillus) and Heather (Calluna vulgaris).

Example wildflowers or forbs seen in the forest understory in association with Marsh Helleborine (Epipactis palustris) are: Red Silene dioica), Sand Catchfly (Silene conica), White Silene latifolia), Common Spotted Orchid (Dactylorhiza fuchsii) and Field Scabious (Knautia arvensis). In some fens within forest clearings the Marsh thistle (Cirsium palustre) is found.

Other associates in the Sarmatic forests include some widespread ferns seen on forest floors such as Western Brackenfern (Pteridium aquilinum) and Mountain Bladderfern (Cystopteris montana). Common mosses found in the more mesic soils are Broom Forkmoss (Dicranum scoparium), Stairstep Moss (Hylocomium splendens), Red-stemmed Feathermoss (Pleurozium schreberi), Ostrich Plume (Ptilium crista-castrensis) and Common Hair Moss (Polytrichum commune).