Identification: BC Tree ID

Discussion in 'Pacific Northwest Native Plants' started by shirdipam, Oct 6, 2012.

  1. shirdipam

    shirdipam Active Member

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    No 1 (somehow didn't get posted!)
    A tree on Hollyburn Mountain in Cypress Provincial Park, outside of Vancouver..
     

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    Last edited: Oct 6, 2012
  2. Ron B

    Ron B Paragon of Plants 10 Years

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    Red alder (Alnus rubra).
     
  3. Douglas Justice

    Douglas Justice Well-Known Member UBC Botanical Garden Forums Administrator Forums Moderator VCBF Cherry Scout Maple Society 10 Years

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    Alnus rubra is a lowland species (primarily) that has a characteristic recurved leaf edge, making it look like the teeth are blunted. The other alder species there is A. viridis subsp. sinuata (Sitka or mountain alder), which replaces red alder at elevation. The place is Hollyburn Mountain or Cypress Provincial Park. "Cypress Mountain" is the commercial enterprise. Cyprus is something else entirely.
     
    Last edited: Oct 7, 2012
  4. shirdipam

    shirdipam Active Member

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    Thanks Douglas. So i guess is it an A. viridis ssp. crispa? I changed the place name and will do so on my other spottings. Thanks for drawing my attention to it.
     
    Last edited: Oct 6, 2012
  5. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    It looks like Red Alder to me too, it looks to have the recurved leaf edge that Douglas mentions. What altitude was it at?
     
  6. shirdipam

    shirdipam Active Member

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    around 1000 meters
     
  7. shirdipam

    shirdipam Active Member

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    I added a photo of the tree...
     
  8. Ron B

    Ron B Paragon of Plants 10 Years

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    In addition to different leaf margins Sitka alder never has apical dominance.
     
  9. Douglas Justice

    Douglas Justice Well-Known Member UBC Botanical Garden Forums Administrator Forums Moderator VCBF Cherry Scout Maple Society 10 Years

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    Agree with Ron B and Michael F—Alnus rubra for sure. Note also the conspicuous overwintering buds, which are stalked and often characteristically "duck-billed."

    I corrected my mistake from yesterday (surprised those two didn't catch me). Sitka alder is A. viridis subsp. sinuata (not subsp. viridis).

    Attached images of A. rubra showing the revolute margin. Portrait shot taken in Chipping Campden, Gloucestershire (imagine my surprise at finding a lowly BC native in Ernest Wilson's home town).

    Last comment: for BC native plant identification on line, try E-Flora BC.
     

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  10. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    I'd have picked it up if you'd put subsp. viridis (as that's Europe's subspecies), but you had it down as subsp. crispa, a far less significant difference, just east-west within N America ;-)
     
  11. shirdipam

    shirdipam Active Member

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    thanks to the 3 of you... thanks to you my ID and understanding of BC trees has improved 100%! Read about them all on Wiki as you supplied the names... Unfortunately the memory is not so good, but I have a record now to refer to. Thanks again.
     

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