Mesic graminoid, graminoid herbaceous, and low scrub graminoid communities occur over a range of moist to dry sites. Poorly drained lowlands support low scrub communities. Mixed forests are codominated by combinations of these needleleaf and broadleaf species. White spruce forests grow on well drained soils. Black spruce, paper birch, balsam poplar, and aspen may codominate with white spruce.
Herbaceous cover varies, depending upon openness of stands.
Common species are Equisetum spp. Aspen forests grow on relatively warm, dry slopes. The herb layer is patchy, and mosses and lichens provide little cover. Paper birch forests are common on moderately well to well drained upland sites. White spruce and black spruce may be present.