a type of bog in which both the vegetation and the peat have low nutrient status, the vegetation having developed either on basin sites receiving runoff water poor in minerals and N (as from coarse or siliceous soils) or in sites in a cool humid climate (as in higher latitudes) where heavy precipitation has leached most of the nutrients from the soil and caused waterlogging for much of the year, creating a blanket bog or blanket peat —note 1. Sphagnum sp. and ericaceous shrubs are typical of high moor vegetation in the northern temperate zone —note 2. a raised bog is a special form of high moor in which the peat accumulation in the center is greater than at its edges; the central portion is thus raised above the natural groundwater level, becomes solely dependent for moisture on precipitation, and is therefore exceedingly low in plant nutrients —see low moor This definition last updated 10/28/2008