Acer macrophyllum

Discussion in 'Maple Photo Gallery' started by Laurie, Oct 18, 2005.

  1. Laurie

    Laurie Active Member Maple Society 10 Years

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    Acer macrophyllum - Washington Park Arboretum, Seattle, and native woods.
     

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    Last edited: Oct 28, 2005
  2. chimera

    chimera Well-Known Member 10 Years

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    In a farmer's field, showing growth habit in fairly open conditions. Breaking older limbs drop at times during high winds, or often the limb hangs up in the tree and falls later. Best grown well distanced from buildings and electrical wires. Falling seeds can plug rain gutters. Locally recommended as a replacement tree for city lots , don't know why. H 75'-80' x W 60' {H 25m. x W 20m.}. Pic 1 taken Oct 13/07. Pics 2 - Oct.24/07, tree in seed and another maple showing where a large branch broke off. Pic 3 bark.
     

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    Last edited: Nov 20, 2007
  3. alex66

    alex66 Well-Known Member Maple Society 10 Years

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    oh very big leaves similar to Platanus for autum coulor too....
     
  4. wcutler

    wcutler Esteemed Contributor Forums Moderator VCBF Cherry Scout 10 Years

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    You can't really tell from the photo, but this leaf from an Acer macrophyllum at the UBC Botanical Garden David C Lam Garden was about 23 inches in diameter (58cm). I saw it on the Greenheart Canopy Walkway today. Not all the leaves on that tree were that size by any means, but there were several large ones. That was just one I could touch and do a hand measurement on.

    By the way, the common name for these is generally bigleaf maple, but the Trees of Reed (Reed College in Portland, Oregon) gives as another common name Oregon Maple.
     

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  5. chimera

    chimera Well-Known Member 10 Years

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    Generally most maples, Japanese included, seem to be colouring up about 7- 10 days ,and you could say peaking, later than last year here with brilliant fall colours. Photos Oct.26/08.
     

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  6. Kaitain4

    Kaitain4 Well-Known Member Maple Society 10 Years

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    Same here. We normally will be done and the leaves off the trees by Halloween. This year it looks like we'll be peaking at Halloween.
     
  7. wcutler

    wcutler Esteemed Contributor Forums Moderator VCBF Cherry Scout 10 Years

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    I had just yesterday afternoon spent some time wondering how many trees I was looking at here in Stanley Park above Ceperley playground, and then last night at the guided tree walk, I learned about coppicing (where new shoots emerge around a tree that's been cut down), and that maple coppices are quite common. The example on the walk was a big-leaf maple, and so is this one.
     

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  8. wcutler

    wcutler Esteemed Contributor Forums Moderator VCBF Cherry Scout 10 Years

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    It's not as if this Stanley Park Acer macrophyllum didn't have enough room to develop a nice full shape, but it seems to have decided against it.
     

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  9. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Looks like it was probably shaded by some other trees to one side, which were subsequently removed. Also looks like it's had some branches broken and/or pruned off in the past.
     
  10. Ron B

    Ron B Paragon of Plants 10 Years

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    Pruning cuts visible in photo. Also, species often rots out with age yet continues growing, with vigorous new growth in some parts and dead stubs in others. I've seen it rooting into its own dead and decayed heartwood.

    During recent weeks multiple local examples are displaying a severe blighting back of branches, marked by yellow and then brown leaves. Other patches are showing much mildewing of the leaves.
     

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