This section began innocently enough as a simple info blog about jujubes. But during the dormant winter periods with no live action to write about, I went back to my roots (ha!) to write more on soil, biochemistry, and soil microbiology in general. I found myself wanting to keep going, and this blog was becoming less and less jujube-specific.
Thus it made sense to restructure everything.
This blog is now The Biosphere Blog, where I will continue writing about these subjects very dear to me.
(And here is my passion project From Soil to Fruit, a combination of the two and very much a work in progress. This is where topics in this blog are arranged in a more structured book-chapter format, to be explored in far more detail.)
Last December hubby and I had a wonderful time exploring the NSW Riverina area. If we hadn’t parked where we did in Narrandera (to visit the Tiger Moth Memorial) we would never have discovered this amazing tree, which we simply call The Narrandera Tree:
What caused it to grow like this? My guess is that some time many years ago, the post was driven through a much younger, softer, surface root. This action possibly tore a hole in the root, but didn’t sever it completely from the tree. Rather, I"m guessing that the fibrous nature of the root tissue caused it to be pushed either side of, and around the post, similar to the threads in a piece of cloth being pushed aside and around a piercing needle.
But the root is living tissue, and would have healed around the tear. New bark was likely being laid along the perimeter of the tear, encircling the post at the same time. Somewhat like a river splitting into two streams to go around a rock then joining up on the other side.
This tree has somewhat buttress-like surface roots at the base of the trunk. The root with the post through it, also at the surface, grew thicker and protruded more onto the surface over time just as the others did. But unlike the others which are following the contours of the land, this one’s growth was dictated by the post inside it, and thus grew upwards around it.
At least that’s my theory and I could be wrong! I certainly welcome anyone’s thoughts in the comments.
And such a beautiful tree too. Does anyone know the species?
How this root handled both a major disruption and an insurmountable object in its life, in a way both beautiful and charming, is quite inspiring I feel!
About the Author
Kristi Ellinopoullos
BSc(Hons), U.Syd. - double major in biochemistry and microbiology, with honours in microbiology
PhD, U.Syd - soil microbiology
Stumbled into IT and publishing of all things.
Discovered jujube trees and realised that perhaps I should have been an agronomist...
So I combined all the above passions and interests into this website and its blog and manuals, on which I write about botany, soil chemistry, soil microbiology and biochemistry - and yes, jujubes too!
Please help me buy a plant if you found this article interesting or useful!
Good morning Kristi, an interesting find with your Narrandera Tree. I would say it’s nothing more than the pearl in an oyster syndrome. The post is possibly decades older than the tree and as its roots developed it found an irritation and grew around it, like a gall or callous. I’ve seen the same with rocks and tree roots but not exposed above ground level though. Your theory is pretty good too.
Good morning Jim and thank you for your input! Yep, what you say makes a lot of sense too. I’m probably overthinking this on account of that perfectly square growth and how it just seems one with the post.
Would so love to know the history of that post. And the tree for that matter. f anyone more cluey on gums than me could hazard a guess as to the tree’s age and species please do let us know!
Good morning Kristi, an interesting find with your Narrandera Tree. I would say it’s nothing more than the pearl in an oyster syndrome. The post is possibly decades older than the tree and as its roots developed it found an irritation and grew around it, like a gall or callous. I’ve seen the same with rocks and tree roots but not exposed above ground level though. Your theory is pretty good too.
Cheerio Jim