Forest types · what grows here
What grows in which forest
The mushroom maps start from the species: you pick one and the map shows where it does well. These pages start from the other end. You are in a forest, and the question is what to look for.
Three types cover most of Finland's forest. The division is the one the map's model uses to separate the species, so recognising the forest type on the ground tells you directly which layers are worth turning on.
The three types
The trees are what you see from a distance, and the ground layer is what tells you the type. Both are below, and after them the mapped species that live in each type.
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Pine heath
Photo: Arto J / Wikimedia Commons, CC BY-SA 3.0, cropped. - Trees
- Pine, in an open and light stand.
- Ground
- Heather and reindeer lichen on sandy soil.
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Spruce forest
Photo: Timo Newton-Syms / Wikimedia Commons, CC BY-SA 2.0. - Trees
- Spruce, in a dense and shaded stand.
- Ground
- Bilberry and thick moss.
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Herb-rich forest and birch
Photo: SeppVei / Wikimedia Commons, CC0, cropped. - Trees
- Birch and other broadleaf trees among the spruce.
- Ground
- Grasses and ferns on dark soil.
The same species can belong to two types. The porcini is in two of the lists, because it does well both at the edges of a spruce stand and on herb-rich heath. Each type's own page says where in the type a species is at its strongest, and what else the same forest holds outside the map.
Where the division comes from
Site fertility class (kasvupaikkaluokka) is one of the themes in the Natural Resources Institute's inventory data, and one of six factors in the mushroom map model. These three pages gather the same information the other way round: what one site class means on the ground, and which species it suits. How the model works as a whole and where its limits are: the mushroom maps and their limits.