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  2. Blue spruce - Wikipedia

    en.wikipedia.org/wiki/Blue_spruce

    The blue spruce (Picea pungens), also commonly known as Colorado spruce or Colorado blue spruce, is a species of spruce tree native to North America in Arizona, Colorado, Idaho, New Mexico, Utah and Wyoming. [4] It is noted for its blue-green colored needles, and has therefore been used as an ornamental tree in many places far beyond its native ...

  3. Old Tjikko - Wikipedia

    en.wikipedia.org/wiki/Old_Tjikko

    The tree's age was determined by carbon-14 dating of the root system, which found roots dating back to 375, 5,660, 9,000, and 9,550 years ago. Carbon dating is not accurate enough to pin down the exact year the tree sprouted from seed; however, given the estimated age, the tree is supposed to have sprouted around 7550 B.C.

  4. Picea abies - Wikipedia

    en.wikipedia.org/wiki/Picea_abies

    However, trees showing some Siberian spruce characters extend as far west as much of northern Finland, with a few records in northeast Norway. The hybrid is known as Picea × fennica (or P. abies subsp. fennica , if the two taxa are considered subspecies ), and can be distinguished by a tendency towards having hairy shoots and cones with ...

  5. Picea glauca - Wikipedia

    en.wikipedia.org/wiki/Picea_glauca

    Picea glauca (Moench) Voss., the White Spruce, [4] is a species of spruce native to the northern temperate and boreal forests in Canada and United States, North America.. Picea glauca is native from central Alaska all through the east, across western and southern/central Canada to the Avalon Peninsula in Newfoundland, Quebec, Ontario and south to Montana, North Dakota, Minnesota, Wisconsin ...

  6. Spruce - Wikipedia

    en.wikipedia.org/wiki/Spruce

    The peg-like base of the needles, or pulvinus, in Norway spruce (Picea abies) Pulvini remain after the needles fall (white spruce, Picea glauca) Determining that a tree is a spruce is not difficult; evergreen needles that are more or less quadrangled, and especially the pulvinus, give it away. Beyond that, determination can become more difficult.

  7. Category:Picea - Wikipedia

    en.wikipedia.org/wiki/Category:Picea

    Individual spruce trees (5 P) Pages in category "Picea" The following 41 pages are in this category, out of 41 total. This list may not reflect recent changes. ...

  8. Picea breweriana - Wikipedia

    en.wikipedia.org/wiki/Picea_breweriana

    Picea breweriana, known as Brewer spruce, [2] [3] Brewer's weeping spruce, or weeping spruce, is a species of spruce native to western North America, where it is one of the rarest on the continent. The specific epithet breweriana is in honor of the American botanist William Henry Brewer .

  9. Picea schrenkiana - Wikipedia

    en.wikipedia.org/wiki/Picea_schrenkiana

    Picea schrenkiana, Schrenk's spruce, [1] or Asian spruce, [1] is a spruce native to the Tian Shan mountains of Central Asia (in Kazakhstan and Kyrgyzstan) and also to western China . [1] It grows at elevations of 1,200–3,500 m (3,900–11,500 ft), [ 3 ] usually in pure forests, sometimes mixed with the Tien Shan variety of Siberian fir ...

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