white spruce Pinaceae Picea
glauca (Moench) Voss
|Leaf: Evergreen needles, stiff, 1/3 to 3/4 inch long, square in cross section, needle tips are pointed but not sharp, when crushed a pungent odor is apparent (some say similar to cat urine), green to gray-green. Each needle borne on a raised, woody peg (sterigma).
Flower: Species is monoecious; males emerge reddish but turn yellow when shedding pollen; females purple.
Fruit: Cones are 1 1/2 to 2 1/2 inches long, cigar shaped, light brown in color, scales are rounded with entire margins, mature in late summer.
Twig: Slender, light brown or pale, sometimes glaucous, hairless. Needles borne on woody pegs.
Bark: Thin, gray-brown in color, smooth, later flaky or scaly.
Form: Conical, medium sized trees reaching up to 90 feet tall.
Looks like: black spruce
- red spruce
- Sitka spruce
- blue spruce
| Additional Range Information:
Picea glauca is native to North America.
Range may be expanded by planting.
See states reporting white spruce.
| External Links:
Silvics of North America
USDA Plants Database
|© Copyright 2015, Virginia Tech|
Dept. of Forest Resources
and Environmental Conservation,
all rights reserved.
Photos and text by: John Seiler,
Edward Jensen, Alex Niemiera,
and John Peterson