Yes, I see the array of images and note they're identified as "birch."
Guess I can only offer another result of my asking Google to identify the
distinction between them.
"Birch trees and aspen trees have a similar appearance, but possess significant 
differences,
specifically in their leaves, buds, bark and abilities to tolerate extreme 
climates.
Additionally, while aspen trees are found across the country, birch trees are 
primarily found
only in the eastern United States and areas of Canada.
The most visible difference between the trees is the bark. Aspen trees have 
white bark
while birch back can be gray, grayish white, red or black.
Additionally, horizontal markings mar the surface of the birch trees while 
aspen typically
only show knots or scars."

I'll leave it there Igor. I don't have the ability to email you this info other 
than
my picking it out one finger at a time. 
If this information is wrong, blame Google and "Garden Guides." :-)

J

----- Original Message -----
From: "Igor PDML-StR" <pdml...@komkon.org>
To: "PDML" <PDML@pdml.net>
Sent: Wednesday, September 21, 2016 8:28:47 AM
Subject: Re: Peso-Colorado Fall


Jack, sorry, but I think you just didn't ask Google the right way! ;)
Look at the images of birches:

https://goo.gl/HCJ68O

Google for images for "American aspen" and for "European aspen" (or 
Eurasian aspen") - or look in Wikipedia.

American aspen (actually two kinds could be behind that common name)
is indeed very white, similar to birch.
Birch is also white. And I grew up with birches surrounding me. :-)

European/Eurasian aspen is greyish (with a greenish tint).

Sorry, I have to run, don't have time to find the links for those.

Cheers,

Igor


  Jack Davis Wed, 21 Sep 2016 08:13:50 -0700 wrote:


Igor, I just ask your birch vs aspen
question of Google and it seems you have the distinction reversed.
Aspen have a "bright white bark"
and the birch a "gray bark."
Glad you asked!


J
Sent from my iPhone

On Wed, 21 Sep 2016, Igor PDML-StR wrote:

>
> Very nice and "bright" (mood-wise) image.
>
> I am always confused by the looks of aspens in Colorado: they are so white 
> that I am thinking if they are birches.
> In my childhood, I am used to see aspen trees with trunks that have more 
> greyish-greenish tint. Something like this:
> http://www.mypriroda.ru/im/plants_les/big_osina-drozashaya.jpg
> I believe that is called "Eurasian Aspen" (or European Aspen), as opposed to 
> "American ("golden" or "mountain") Aspen" that (I believe) is in your photo.
>
> Igor
>
> PS. Compare to birches: 
> http://42graphy.org/galleries/1-Selected-2002-2009/100_0619.html
>
>
>
>
>
> Jack Davis Wed, 21 Sep 2016 06:40:09 -0700 wrote:
>
>
> Looking for something appropriate for the season.
> Shot several years ago near Ouray, Colorado.
> Prefer it in B&W, but to match the theme, chose this.
>
>
> C&C welcome!
>
> Mamiya6, 50mm lens.
>
> J
>
> http://photolightimages.com/aspupload/detail.asp?ID=1102
>

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