In the Landes region they grow in millions, for industrial use, in monoculture. But in Dordogne they mostly grow together with other species. You'll find the Maritime Pine (Pinus pinaster) with deciduous trees like chestnuts and oaks, wherever the soil is not too calcareous.
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In young trees the bark is grey, but later on it is more colored, going from reddish to purplish blue, with deep crevices between the scales.
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