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Yellow Birch (Betula alleghaniensis) Links

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Contributors » GrizzlyChris » Yellow Birch (Betula alleghaniensis)

Yellow Birch (Betula alleghaniensis) discovered by GrizzlyChris (#2664)

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Sighting Info

Observed: June 21, 2014 @ 12:15 AM
Posted on: June 21, 2014 @ 11:54 AM (diff: 0 days)
Wondering if someone can help me with it. This birch grows on our acreage we owned since 07, always wondered the age? Is there any way to (even close) determine it's age? As it grows of course :) my wife is in pic for scale. 5ft wife and widest part of tree I measured was 10.4ft.

Sighting's Identification

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Newfoundland Nature

Newfoundland Nature

Comments by Site Members (scroll to post comment)

By Lessa on 6/23/2014 11:16:46 AM

Hi Grizzly Chris,

That's a gorgeous Yellow Birch. They live to be about 150 years old - and 150 yr old ones tend to be about 60 cm in diameter. So I would guess yours is (well) over 100 years. 

Yellow birch here often have some pretty interesting lichens growing on them. If you see any lichens on the bark that look somewhat distinctive from lichens you see more often in the woods, send us a picture!

By GrizzlyChris on 6/23/2014 9:34:18 PM

Cool! Thanks. U said 150 year old ones 'tend to be about 60 cm in diameter' questions: I measured 3of it's vertical trunks separately, biggest is 200cm, avg of other 2 are 114cm. 1)should I measure the bigger trunk below all 3 for accuracy? 2) it's 200cm for just largest trunk, is it possible it 'could be' over 200 years old? I'll post a pic I took today of a lichen spot on a yellow birch next to this one for you :) Never! Realized Newfoundland had such trees! More than a rock I guess? :)

By Lessa on 6/23/2014 10:00:44 PM

I think the smaller trunks likely grew out of a single stump... Much as you might see a maple or white birch when very young shoots grow out from a single trunk/stump. So I would take the diameter of the largest of the three as indicative of age. Is the 200 cm you measured the distance around (I.e., with a flexible tape?) Or a measure of the cross section. The 60cm max is taken to be the cross section. It can be measured accurately with a special tape call diameter tape... Otherwise you need to measure distance around, and then remember your grade 10 geometry to calculate diameter/cross section :)

By GrizzlyChris on 6/24/2014 8:57:07 AM

SO! Glad I found this group here :) ask most ppl on province here 'any idea on tree aging?' 'Yeah, cut it down count rings' lol. Measuring as u said, she is 64cm, maybe slight more? But I'm 'rooting' she still out lives me, 4 another 60yrs+ Currently 40 lol. Thank you Lessa

By Lessa on 6/24/2014 9:07:42 PM

Ok.. 64ish cm, I'd say about 150+ years is a good guess. If by chance it ever blows down/dies and is not rotten you can count the rings and find out for sure!

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