White Spruce

Picea glauca · Pinaceae (Pine family)

AI-generated identification · may be incorrect
White Spruce

Leaf Morphology

Leaf Type

Specialized needle, evergreen

Shape

Linear needles that are four-sided (quadrangular) in cross-section and sharply pointed at the tip

Margin

Entire (smooth edges), though the sharp points can feel prickly

Arrangement

Spiral arrangement on the twig, attached singly to small woody pegs called sterigmata

Venation

Parallel venation with a single central resin canal inside each needle

Key Features

Single, four-sided needles that roll easily between the fingers, attached to prominent woody leaf bases (pegs) on the twig, combined with the distinct pungent, skunk-like scent of crushed foliage

Description

The White Spruce is a magnificent medium-to-large evergreen conifer featuring a conical to pyramidal crown. It possesses scaly, greyish-brown bark, drooping branchlets, and cylindrical, light brown seed cones. The foliage is famous for emitting an unpleasant, skunk-like odor when crushed, which earns it the moniker 'Skunk Spruce'.

Habitat

Boreal forests and northern taiga, thriving in moist, well-drained soils along streams, lake margins, and upland slopes, but highly adaptable to various soil types

Native Range

Native to the northern temperate and boreal forests of North America, spanning from Alaska across Canada down into the northern United States, including northern Minnesota

Notes

Northern Minnesota

Identified on 10/9/2026
White Spruce | Leaf Identifier