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Discussion in 'Plants and Biodiversity Stumpers' started by TonyR, Mar 18, 2007.
Someone should recognise it.
Tree Dahlia? Dahlia imperialis
That species too well known
I've never actually seen one. It was the sepals that
made me think of Dahlia then I searched the species
knowing it wouldn't be a cultivar.
Chris, my response was perhaps a little unclear. It's not D. imperialis. But congrats on getting the genus.
Since interest in this one did not continue, it's time to give the answer.
It's Dahlia tenuicaulis, which I think has been spread around to a limited extent. It's one of the tree dahlias but only gets about 3 m tall or a trifle more, not as tall as D. imperialis. Foliage is slightly different from other dahlias, with thin, broad leaflets of a somewhat purplish green shade, and the flowers are only about 3 in diameter and not at all conspicuous, but an interesting colour -- and have been appearing continuously now for almost 5 months, far longer than flowering of D. imperialis.
Not a plant of much ornamental value, but if I ever find time to take up plant breeding, this is one I'd like to play around with.
Here's the fully open flower
Its lovely would look great in my jungle. I have what I know as a tree dahlia growing in several parts. The flower seems to be a paler mauve and the things are very tall about 5 meters if the wisteria holds them up. I have also found that If I am not careful how I get rid of the cut down stems they just keep going hence a bit of a weed. Thanks for the information
If you'd posted the second pic rather than the first, I might have got it ;-) . . . there was a pic of it in the RHS magazine 'The Garden' a while back which someone had taken on Nevada de Colima in Mexico. Might even have been the source of the seeds which you're growing now. But the half-open flower pic was different enough to put me off suggesting it.