Pseudotsuga macrocarpa (Vasey) Mayr
  • Wald. Nordamer.
  • Bigcone Douglas-fir, bigcone-spruce


Cite taxon page as 'WFO (2020): Pseudotsuga macrocarpa (Vasey) Mayr. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000396497. Accessed on: 26 Oct 2020'

General Information

Trees to 25 m tall; trunk to 1.3 m d.b.h.; bark reddish brown, aging dark blackish gray, scaly, longitudinally fissured; branchlets pendulous, reddish brown or pale brown, aging gray-brown, slender, flexible, slightly pubescent; winter buds reddish brown, ovoid-conical or fusiform-conical, acute. Leaves 2.5-4 cm × ca. 2 mm, stomatal bands 2, abaxial, grayish white, base strongly twisted, apex acute. Seed cones greenish yellow when immature, ripening to dull brown, ovoid-cylindric, 9-13(-18) × 4-6 cm. Seed scales at middle of cones broadly cuneate-flabellate, thick, transversely convex, 2-2.5 × 3-3.5 cm, often resinous, puberulent when young, soon glabrous, faintly striate abaxially. Bracts exserted, not reflexed, lingulate, cusp longer than lateral lobes. Seeds brown, ovoid-conical, 1-1.2 cm × ca. 6 mm; wing pale brown, obovate, 1-1.4 cm.

  • Provided by: [B].Flora Of CHina @ efloras.org
    • Source: [
    • 1
    • ]. 

    Trees to 44m; trunk to 2.3m diam.; crown broadly conic. Twigs slender, glabrous or pubescent. Leaves (20--)25--45 × 1--1.5mm, bluish green, apex mucronulate. Pollen cones pale yellow. Seed cones 9--20 × 4--7cm. Seeds 9--12mm. 2 n =24.

  • Provided by: [A].Flora of North America @ efloras.org
    • Source: [
    • 2
    • ]. 

    Literature

    SELECTED REFERENCES

    Minnich, R.A. 1982. Pseudotsuga macrocarpa in Baja California? Madroño 29: 22--31.

  • Provided by: [A].Flora of North America @ efloras.org
    • Source: [
    • 2
    • ]. 

    Other Local Names

    NameLanguageCountry
    Bigcone Douglas-fir, bigcone-spruce

     Information From

    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • A Flora of North America Association
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Missouri Botanical Garden
    Global Tree Search
    https://tools.bgci.org/global_tree_search.php
    BGCI. 2018. GlobalTreeSearch online database. Botanic Gardens Conservation International. Richmond, U.K. Available at www.bgci.org. Accessed on 30/11/2018.
    • C Botanic Gardens Conservation International
    International Union for Conservation of Nature
    https://www.iucn.org/
    IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
    • D All Rights Reserved
    International Union for Conservation of Nature v.3
    https://www.iucnredlist.org/
    IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
    • E See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use
    Pinaceae
    • F CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • G CC0 1.0 Universal (CC0 1.0).