ken_t_dawson's picture

Evergreen shrub alien species?

Observed: 21st August 2013 By: ken_t_dawsonken_t_dawson’s reputation in Plantsken_t_dawson’s reputation in Plantsken_t_dawson’s reputation in Plants
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Description:

Several plants, one over 2m tall (IMG_4049). Large (up to 30cm or more long) petiolate glossy green leaves with light green underside to the leaves. Leaves ovate, apex acuminate, base rounded to truncate. Stem light green with some pinkish tinges and light lenticular marks.

Identifications

No identification made yet.

Species interactions

No interactions present.

Comments

Vinny's picture

Sure it's evergreen?

Looks to me like some kind of Balsam Poplar - possibly Populus trichocarpa. There may be a larger tree nearby producing these suckers - or it may be trying to regrow from roots if it's been cut down.

ken_t_dawson's picture

Re: Sure it's evergreen

No, I'm not at all sure that it is evergreen - the large dark green shiny upper surfaces to the leaves reminded me of evergreen waxy leaves.
Thanks very much for your suggestion of a Balsam Poplar; I think that you are very likely correct. The size of the leaves would indicate Populus trichocarpa as you suggested - I can't find any other poplar, including the Eastern Balsam Poplar (Populus tacamahaca) that has leaves of this size (up to 30cm long) listed in 'A Field Guide to the Trees of Britain and Northern Europe' Alan Mitchell, Colins 1978.
Many thanks again.

lavateraguy's picture

The figures given in the books ...

... are for normal leaves. Leaves on suckering shoots can be larger.

Rachy Ramone's picture

...MUCH larger!

Perhaps you can keep an eye on it over the coming winter, and add more details to this Observation as time passes?

It might also be worth having a look around the site to check if there are any large trees nearby, or any large stumps which might indicate that a tree has been removed in the last year or two.

Rachy Ramone

How to take close-ups with cheap phone and hand-lens:
http://tree-and-shrub-id.blogspot.co.uk/p/how-to-close-ups.html
Field Guides for Budding Botanists:
http://www.amazon.co.uk/-/e/B01A8YB0WY

ken_t_dawson's picture

Re: ...MUCH larger!

Thank you Rachy for your comments. I will try to keep an eye on it during the winter to check that it is deciduous and spring when it might produce flowers (and a scent perhaps, if it is a Balsam-poplar).
I did look for mature trees and spotted another poplar but its leaves were very much smaller and not at all similar. It is quite possible that what I saw was growing from the site of a former tree but I could see no actual stump, although there were wood chippings!.
The trees are in a closed off area which I couldn't (legally) access so unfortunately closer observation and close ups are not really practical.