Black spruce (Picea mariana), also called bog spruce, swamp spruce, and shortleaf black spruce, is a wide-ranging, abundant conifer of the northern parts of North America. Its wood is yellow-white in color, relatively light in weight, and strong.

Picea mariana, the black spruce, is a North American species of spruce tree in the pine family. It is widespread across Canada, found in all 10 provinces and all 3 territories. It is the official tree of Newfoundland and Labrador and is that province's most abundant tree.

More recent work suggests a strong relation between the Old World Serbian spruce and the New World black spruce (Fowler 1980). At least 12 species occur in China (Li and others 1990).

Black spruce dominates most spruce-fir ecosystems of boreal North America. Black spruce communities are generally classified into forest and woodland types. Ericaceous shrubs often grow in black spruce understories, with mosses and lichens in ground layers.

Black Spruce (Picea mariana) • Shade tolerance: moderately tolerant • Longevity: 150-250 years • Persistence as advance regeneration: fairly long, as layered branches in open stands • Seeding, early establishment: semi-serotinous, fire-dependent • Habitats: organic soils (bogs) • …

black spruce Pinaceae Picea mariana (Mill.) Britton, Sterns & Poggenb. symbol: PIMA. Leaf: Evergreen, four-sided needles, stiff, 1/4 to 1/2 inch long, light blue-green in color, somewhat blunt pointed tips, light blue-green to gray.

2024年11月12日 · Spruce webspinning sawfly Scientific name: Cephalcia fascipennis (Cresson) Threelined larch sawfly

heat from forest fires opens the Black Spruce cones releasing seed to naturally regenerate burns in Newfoundland common to reproduce by "layering" on very wet sites, where moss covers lower branches, causing them to develop into new trees

Figure a-Black spruce stand in a swamp in Minnesota. In the north, black spruce sites are commonly un-derlain by permafrost (perennially frozen soils). Black spruce seems to be the tree species best adapted to growing on permafrost soils because of its shallow rooting habit. Often the annual thaw depth (active zone) may be as little as 40 cm ...

Distribution: Black spruce has a widespread distribution across northern North America near the northern limit of trees, from Newfoundland, Labrador and northern Quebec, west to the Hudson Bay, northwest Mackinaw and central, western and southern Alaska, south to central British Columbia, and east to southern Manitoba, central Minnesota ...