Identification: Maple ID, Yamagata Pref., Japan

Discussion in 'Maples' started by Michael F, Sep 20, 2020.

  1. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Can anyone ID the maple in this pic on Wiki Commons, please? In the mountains east of Yamagata (exact location given on the photo page).

    Thanks!
     
  2. Acerholic

    Acerholic Esteemed Contributor Forums Moderator VCBF Cherry Scout Maple Society

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    @Michael F Good afternoon Michael. Appears to me to be Acer rubrum.
     
  3. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Not in the wild in a national park in Japan! Also not with 7-9 lobed leaves ;-)
     
  4. Acerholic

    Acerholic Esteemed Contributor Forums Moderator VCBF Cherry Scout Maple Society

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    Sorry only saw 5 lobes. And yes very true not in Japan.
     
  5. emery

    emery Generous Contributor Maple Society 10 Years

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    The best I can come up with is A. sieboldianum, but it's a puzzler! Clearly in Section Palmata, so that limits things as to what is endemic. Does not look like shirasawanum to me.
     
  6. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Thanks! Acer sieboldianum looks a fairly good match; I'll go with that unless anyone else can suggest anything different.
     
  7. AlainK

    AlainK Generous Contributor Forums Moderator Maple Society 10 Years

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    I had a look at this page that I keep in my bookmarks, and nr 21 (A. ukurunduense) or nr 19 (A. diabolicum), or even nr 16 (A. tschonoskii) could correspond too : the lobes are not as evenly distributed and on each lobe, and the margins look more unevenly dented than in other species.

    Species discernment of Japanese maples
     
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  8. emery

    emery Generous Contributor Maple Society 10 Years

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    That's a great site, I think I only have dead links to it. It's for sure not diabolicum or tschonoskii, and I wouldn't have guessed ukutunduense from mine or the ones I've seen; but it does look like the pic in your site Alain, and there is a wide variability in the species. Good guess, though I think sieboldianum is more likely still. ;)
     
  9. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Thanks! I'd agree A. sieboldianum is still the best fit; there's a nice pic in Trees & Shrubs Online that matches well on leaf shape, the only difference I can see is that the Commons pic has more obviously serrated lobe margins. This pic at Mendocino Maples does show similar serration though.
     

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