Very Large Rock Elm (Ulmus thomasii) in Merrickville

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#1)  Very Large Rock Elm (Ulmus thomasii) in Merrickville

Postby wrecsvp » Sun Oct 06, 2013 10:41 pm

I tend to always be on the lookout for native species which are uncommon or rare.  Rock Elm is one of those species, having been first extensively logged for valuable wood and then has declined further due to Dutch Elm Disease.
Well, here is some good news.  At the historical "Percival House", I found this absolute monster Rock Elm in the town of Merrickville: 92 ft tall by 128 inch CBH (almost 3.5 ft average DBH).  The tree is old: its bark at ground level is balding significantly.  There is no evidence it has been treated to combat Dutch Elm Disease.  
I wonder if this may be the champion living Rock Elm in 2013?  Though the species was historically documented to frequently attain 100ft tall by 5ft DBH, the widely scattered "big" ones I find today are generally 60-70 ft tall by 2-2.5 ft DBH.  I don't have an accurate crown spread measurement, but the Merrickville tree has a reasonable spread for the species appearing to be on average around 60-70 ft.  
Here's a couple of street view links, and I attached a photo of the balding trunk. I would be happy to attach other photos on request.
http://goo.gl/maps/Z53u4
http://goo.gl/maps/8QEft
Owen
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Balding_Rock_Elm_Merrickville.JPG
Last edited by wrecsvp on Thu Dec 05, 2013 12:10 pm, edited 1 time in total.

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#2)  Re: Very Large Rock Elm (Ulmus thomasii) in Merrickville

Postby wrecsvp » Mon Oct 07, 2013 2:08 pm

Here is the view looking up at this magnificent tree.
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#3)  Re: Very Large Rock Elm (Ulmus thomasii) in Merrickville

Postby Larry Tucei » Mon Oct 07, 2013 4:17 pm

Hi Owen-  What a beautiful Rock Elm!  Thanks for sharing. Not familar much with this species or the city so I looked it up. I think you may have found one of the largest of its kind in Canada.       http://en.wikipedia.org/wiki/Ulmus_thomasii  http://www.merrickvillehistory.org/walkingtour.html                                                                                                                                                                    From the 2012 National Registry of Trees                                                                                                                                                                                              Rock Ulmus thomasii 1989   Cir -189, Height-100, Spread-85, Points- 310 MI Cass Co. Andrew & Noah
Sawyer                Larry

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#4)  Re: Very Large Rock Elm (Ulmus thomasii) in Merrickville

Postby wrecsvp » Mon Oct 07, 2013 4:35 pm

Thanks Larry.  I had found that record from the 1980s as well and am wondering if the tree is still there (i.e. alive and well), as Dutch Elm Disease is still killing so many Ulmus in the landscape.
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#5)  Re: Very Large Rock Elm (Ulmus thomasii) in Merrickville

Postby wrecsvp » Mon Dec 23, 2013 7:32 pm

I went on a roadtrip today and took a few winter photos of the "Merrickville Monster", lightly coated with freezing rain.
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HPIM4127_lowres.JPG
HPIM4128_lowres.JPG
HPIM4129_lowres.JPG
20131223_100941_lowres.jpg
Reverse angle

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#6)  Re: Very Large Rock Elm (Ulmus thomasii) in Merrickville

Postby wrecsvp » Fri Apr 11, 2014 7:13 am

This notable tree is now immortalized as a work of art by well-known Nature artist and friend Aleta Karstad.
http://karstaddailypaintings.blogspot.c ... s36-x.html
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30yl2014merrickvillerockelm500.jpg
Once a upon a time, in the year 2014...

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#7)  Re: Very Large Rock Elm (Ulmus thomasii) in Merrickville

Postby wrecsvp » Sun Sep 04, 2016 6:50 pm

As with the Hartington Rock Elm, I also checked on the huge Merrickville Rock Elm yesterday on the way home from a roadtrip.  Happily, found it too to be still in excellent health in a hot/dry summer with many elms dropping from Dutch Elm Disease.
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IMG_2709_lowres.JPG
top of crown emerging from behind mature streetside tree plantings
IMG_2710_lowres.JPG
IMG_2711_lowres.JPG
mid-crown zoom
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