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Black spruce identification: needles, bark, cones and twigs
Black spruce, Picea mariana, is a native tree in Pennsylvania. How to recognize it by its needles, bark, cones and twigs, and how to tell it from look-alikes.
Single needles, attached one at a time. Stiff four-sided needles 1/4 to 1/2 inch long, blue-green, with fairly blunt tips. Bark: Thin gray-brown to red-brown bark broken into small scales. Checked Nov. 14, 2026.
How to identify black spruce
| Leaf type | Single needles, attached one at a time |
|---|---|
| Needles | Stiff four-sided needles 1/4 to 1/2 inch long, blue-green, with fairly blunt tips. Each sits on a small woody peg. |
| Bark | Thin gray-brown to red-brown bark broken into small scales. |
| Cones | The smallest spruce cones, about 1 inch long and egg-shaped, with finely ragged scale edges. |
| Twigs | Slender brown twigs with fine hairs. |
| Size and shape | Very narrow, spire-like crown; up to about 70 feet. |
From the Virginia Tech Dendrology fact sheet, in our own words.
Is black spruce native to Pennsylvania?
The Pennsylvania Natural Heritage Program (PNHP) lists black spruce as native to Pennsylvania.
See all 140 trees, with a 4-question identifier, in our Pennsylvania tree identification guide.
Trees that look like black spruce
| Tree | Its leaves |
|---|---|
| Red spruce Picea rubens | Single needles, attached one at a time. Sharp, four-sided needles 1/2 to 5/8 inch long that curve upward, glossy yellow-green, each on a woody peg. |
Compare the leaves first, then the bark, cones and twigs on each tree’s page.
Other spruces in Pennsylvania
Norway spruce (Picea abies), Colorado spruce (Picea pungens).
Questions
How do you identify black spruce?
Look for single needles, attached one at a time. Stiff four-sided needles 1/4 to 1/2 inch long, blue-green, with fairly blunt tips. Bark: Thin gray-brown to red-brown bark broken into small scales.
Is black spruce native to Pennsylvania?
The Pennsylvania Natural Heritage Program (PNHP) lists black spruce as native to Pennsylvania.
How big does black spruce get?
Very narrow, spire-like crown; up to about 70 feet.
What tree looks like black spruce?
Red spruce. Compare the leaves first.
Sources: Virginia Tech Dendrology (Picea mariana fact sheet); Pennsylvania Natural Heritage Program, PA Vascular Plant List (native or introduced status). Checked Nov. 14, 2026.
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