Picea glauca (Moench) Voss Picea canadensis (Mill.) Britton Sterns & Poggenb. Picea glauca (Moench) Voss var. albertiana (S. Br.) Sarg. Picea glauca (Moench) Voss var. densata L.H. Bailey Picea glauca (Moench) Voss var. porsildii Raup White spruce, Canadian spruce, skunk spruce, cat spruce, black hills spruce, western white spruce, Alberta white spruce, porsild spruce
White spruce is native to northern boreal and temperate forests of North America, originating mostly in Canada and Alaska but reaching gradually south. Plants: Trees are typically 49-98' (15-30 m) tall, sometimes reaching 131' (40 m). Trunks are as much as 3' (1 m) in diameter. The tree crown is conical in young trees, become more cylindrical as they age. Bark is light gray brown, thin and scaly, peeling in small circular plates. Leaves: Leaves are needles ⅜-¾" (1.2-2 cm) long, with diamond-shaped cross-sections. The rigid blue-green needles have a waxy whitish coating, hence the name “white spruce.” Fruits: Hanging cones are cylinder-shaped, 1-2½" (3-7 cm) × ½" (1.5 cm). They are comprised of thin scales ½" (1.5 cm) long, with smooth edges. They begin green or violet, gradually turning pale brown. Seeds are black, ¹/₁₆-⅛" (2-3 mm) in size, with a small pale brown wing about three times the size of the seed. Online References:
Picea glauca on conifersociety.org Picea glauca on Earl J.S. Rook's Flora, Fauna, Earth, and Sky ... The Natural History of the Northwoods Picea glauca on The Gymnosperm Database Picea glauca on Wikipedia 9/9/2010 · Pine Meadow Conservation Trust Land, Groton Harvard Road, Ayer, Massachusetts 1/1/2011 · MacDonald-Zachos' 1/1/2011 · MacDonald-Zachos' 7/17/2010 · Mackworth Island, Falmouth, Maine Picea glauca description by Thomas H. Kent, last updated 25 May 2020. © FloraFinder.org. All rights reserved. |
9/9/2010 · Pine Meadow Conservation Trust Land, Groton Harvard Road, Ayer, Massachusetts The conelike objects may be from spruce budworms. · 9/9/2010 · Pine Meadow Conservation Trust Land, Groton Harvard Road, Ayer, Massachusetts 9/9/2010 · Pine Meadow Conservation Trust Land, Groton Harvard Road, Ayer, Massachusetts 1/1/2011 · MacDonald-Zachos' 9/20/2009 · Wild Gardens of Acadia, Acadia National Park, Bar Harbor, Maine 1/1/2011 · MacDonald-Zachos' Range: Zones 2:
|