A slow-growing, narrow-crowned spruce of the North American boreal forest and muskeg, vital for pulpwood and caribou habitat.
Where it grows
Black spruce is the signature tree of the North American boreal forest, ranging from Alaska across Canada to Newfoundland and dipping south into the Great Lakes and New England. It thrives in cold, wet, poorly drained muskeg where almost nothing else can survive, but also grows on better uplands.
How to recognise it
Needles are short, blue-green, and stiff with a dusty bloom. The cones are tiny — barely 2 centimetres — and cluster at the top of the tree, where they may remain closed and attached for years until a wildfire releases the seeds. The crown is a narrow spire above a tuft of denser foliage, an unmistakable boreal silhouette.
Uses
Black spruce supplies most of the long-fibred pulp used for premium paper and packaging in Canada. The slow growth produces tight rings that make the wood unusually strong for its weight, popular for guitar tops and small construction.
Ecology
Black spruce muskegs hold huge stores of soil carbon and provide nesting habitat for boreal songbirds, while caribou rely on the lichens that festoon mature trees.