Swirled cambium

[Tom Dunlap]

This pic is going around Facebook:

Ropey cambium

I've seen this and I've got some trunk pieces with the ropey swirls in it.

There was a research paper attached to a comment on a Facebook post that I can't find. The research showed that the swirls seemed to slow down the movement of water from the trunk to the limbs. This helped keep the limb subordinated.

Does anyone have the link to the research?

 

[jmcscrap]

Great image - almost looks photo shopped it's so clear. Would definitely be interested in hearing the cause/effect of such a growth pattern.

 

[CanadianStan]

Could be photoshopped .. or a carving .. I’ve never come across such a severe version of that phenomenon

 

[evo]

This pic is going around Facebook:

Ropey cambium

I've seen this and I've got some trunk pieces with the ropey swirls in it.

There was a research paper attached to a comment on a Facebook post that I can't find. The research showed that the swirls seemed to slow down the movement of water from the trunk to the limbs. This helped keep the limb subordinated.

Does anyone have the link to the research?

I saw that post last year or so.. my take on it is it’s reaction wood.
I’m highly interested reading any paper related to loss of hydraulic function in reaction wood or whatever this is

 

[Tom Dunlap]

It's not a photoshop

The article was very interesting. I've got feelers back out to a couple of arbo facebook pages to find the paper. When I find it I'll post a link.

 

[robinia]

It's not from Duncan Slater is it?

A Fork in the Road - Original Article

Introduction Most experienced arboriculturists will be familiar with the failure of bark-included junctions (Fig. 1): it is a common type of failure that one gets to see within the aerial structures of amenity trees.

www.linkedin.com

 

[ATH]

Hey @KTSmith
This you? https://www.nrs.fs.fed.us/pubs/jrnl/2012/nrs_2012_smith-k_002.pdf

Any thoughts on this?

 

[KTSmith]

Thanks ATH, yes, that little burl piece be me.
Sure, we have all seen those marked disruptions in grain, although this particular image is extreme, not in the disruption but in the colorization. Contrary to the FB post, the burning occurred *after* and was not a cause of the disruption.
Of greater interest to me is Tom D.'s question. No, I don't know that such "swirls" reduce vascular conductivity, although it would make sense that they would. I have a little paper just recently out on reduced hydraulic conductivity in woundwood at: https://www.nrs.fs.fed.us/pubs/58761,

 

[Tom Dunlap]

@robinia Thanks for finding the article. It isn't the research paper write up I saw.

After one read through I realize it's going to take 2-3 more reads to grasp what's new.

 

[Tom Dunlap]

@KTSmith Thanks...more multi-reads ahead for me! Trees are so dang interesting!