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Some Unusual Trees

thoughts.wyounas.com

71–80 of 94 posts

Re: Some Unusual Trees

#71
> but you know wood? You know when you hold something in your hand, and it’s made of wood, and you can tell that? Yeah, that thing.

everyone should have a copy of Identifying Wood on their metal bookshelf

Re: Some Unusual Trees

#72
post #58

Earlier quoted context omitted.

Well, no, what we're saying here is that if you use a rigid, hierarchical catergorisation system (cladistics) you can say that there is no such monophyletic grouping as a fish. Ie there is no grouping with a common ancestor that encompasses all the things, and only the things, that we commonly call fish. That system hasn't failed, it's fine, its purpose is to categorise things in terms of evolutionary descent. Howeve…

Correct me if I'm wrong, but I don't think humans are reptiles, phylogenetically. The Synapsida (containing mammals) and Sauropsida (containing reptiles) are sibling groups inside the Amniota.

You're probably right I'm no expert

Re: Some Unusual Trees

#73
post #25

Earlier quoted context omitted.

All I know about them is they're bad railroad ties, and they explode. https://www.youtube.com/watch?v=OpH9gBsNEwI

True. Although in their native Australia they grew quite straight. It's the introduced trees that grow not so straight and make bad railroad ties. In areas where they are introduced, they also become quite invasive by practicing something called alelopathy, whereby they introduce toxins into the soil to prevent competing tree species from taking hold. While I'm at it, Eucalyptus trees have very very dense wood which…

Eucalypt forest fires are bad because the leaves are full of oil and when it's hot, dry and windy, they're extremely flammable and the fire races through the tops of the trees at incredible speeds, and jumps across large fire breaks that appear to be wide enough that they should stop it.

But at the same time the wood is also very dense, so makes great campfire wood, but doesn't burn so much in a forest fire, which is a bit ironic...

Re: Some Unusual Trees

#74
An unusual tree I remember fondly as a child, is in the Karri forests of south-western Australia[1] .. we'd driven through a wild and stormy afternoon to get to it, a friend of my mother had gotten permission and the cabin key, as it was closed to the public then - and so it was that we were climbing the slippery, seemingly fragile iron posts that ringed its trunk[2] all the way to the top to find ourselves cramped into a fire lookout cabin .. we camped overnight in tight sleeping bags with a cold can of baked beans and yesterdays toast for breakfast, and I will always remember the lissajous swing of the thing, carefully turning the resonance of the wind into a constant figure 8, around and around, sometimes in minute increments gradually widening and slowing .. but every now and then, a big fast sweep would happen on the wind, and the tree would translate it through an odd crack into a bigger leverage, and that sleep that was so close gets pushed just a bit beyond the conscious horizon as one wondered, literally, if the tree was finally going to fall .. after a hundred or so years .. but still, just a few hours later, all is calm, the bush is slowly thawing out, the relentless sun conquers the horizon, the iron rungs dry out, the trees leaves steam in the morning sunrise, this great behemoths strength feeling safer and safer as we take gravitys' step .. and we are just too soon back on the ground and off for some surf out at Yallingup or so ..

A beautiful living thing which my perception of its rythmic swing has lived on with me for decades. Trees are lovely.

[1] - https://en.wikipedia.org/wiki/Eucalyptus_diversicolor

[2] - https://en.wikipedia.org/wiki/Gloucester_Tree

Re: Some Unusual Trees

#76

Related: There’s no such thing as a tree (phylogenetically) https://eukaryotewritesblog.com/2021/05/02/theres-no-such-th...

There's no such thing as a fish either. Unless you count whales, parrots and Kanye West as fish.

If you like trivia and British humor the podcast No Such Thing as a Fish is amazing.

Re: Some Unusual Trees

#78

I would say the Eucalyptus tree, planted all over the world but native to Australia, is quite unusual. Young Eucalyptus trees have leaves that are rounded and are arranged opposite to one another. However, when mature the leaves of a Eucalyptus are lance-like and are arranged in an alternating fashion. This to me is quite unusual.

I agree eucalypts are unusual, I also find them beautiful, especially ones with smooth light bark like Ghost Gum and Citriodora, which has light pinky-orange bark! Such a presence!). I've never seen a Rainbow Gum but would love to one day!

I live in South Australia and I was surprised to hear about all Eucalypts having 'leaf dimorphism' (that is what I searched for, then learned that it's usually known as 'heteroblasty') I have of course seen it many times in-the-wild, but it is not universal to all Eucalypts.

Banksia, Grevillea and Hakea are also very beautiful Australian native trees/shrubs imo, but they are a different group: Proteaceae. And there's a fascinating fruiting small tree called 'Quandong' that's in the Sandalwood family (still seems bit related to eucalypts or maybe Wattle (Acacia) when looking at it in real life though).

Re: Some Unusual Trees

#79

I would say the Eucalyptus tree, planted all over the world but native to Australia, is quite unusual. Young Eucalyptus trees have leaves that are rounded and are arranged opposite to one another. However, when mature the leaves of a Eucalyptus are lance-like and are arranged in an alternating fashion. This to me is quite unusual.

I agree eucalypts are unusual, I also find them beautiful, especially ones with smooth light bark like Ghost Gum and Citriodora, which has light pinky-orange bark! Such a presence!). I've never seen a Rainbow Gum but would love to one day! I live in South Australia and I was surprised to hear about all Eucalypts having 'leaf dimorphism' (that is what I searched for, then learned that it's usually known as 'heteroblas…

As someone who grew up with a Quandong in their backyard please don’t plant quandongs without serious planning

It grew 40m in ~10 years and spanned ~200-300m^2

Re: Some Unusual Trees

#80
post #79

Earlier quoted context omitted.

I agree eucalypts are unusual, I also find them beautiful, especially ones with smooth light bark like Ghost Gum and Citriodora, which has light pinky-orange bark! Such a presence!). I've never seen a Rainbow Gum but would love to one day! I live in South Australia and I was surprised to hear about all Eucalypts having 'leaf dimorphism' (that is what I searched for, then learned that it's usually known as 'heteroblas…

As someone who grew up with a Quandong in their backyard please don’t plant quandongs without serious planning It grew 40m in ~10 years and spanned ~200-300m^2

Wow! I have not heard about that! A 40m tal! Quandong!? Crikey! Tallest I've seen is about 10m. I guess they usually don't get that big in SA.

Must have been ideal conditions for it in your case and maybe it happened to be a particularly vigorous/fast-growing variant!? I have heard that it can be hard to get the seeds to germinate (sounds like it was working without troubles on your property!) I'd actually be kinda happy if it took over most of the grass at my place though I reckon! :)

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