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Plant identification => Plant identification => Topic started by: JTh on July 22, 2017, 09:18:27 PM

Title: bush with three-lobed leaves ID'd by John J as Brousonnetia papyrifera
Post by: JTh on July 22, 2017, 09:18:27 PM

Could anybody please help me with the identification of this bush covering the hillside along the Akropoleos street between the old city wall and the church Agios Pavlos in Thessaloniki? The vegetation was quite dense, so I couldn’t see what the trunks were like, the leaves were large, three-lobed, serrate, greyish-green and possibly slightly hairy. I have searched the internet and the only leaves I found which look similar were those of the tree marigold, Tithonia diversifolia, but I have never seen that in Greece and it is most likely something else.  No flowers yet.

(https://farm5.staticflickr.com/4293/35279749123_846f075154.jpg) (https://flic.kr/p/VKxWhB)
P7126566.jpg View from Agios Pavlos, Thessaloniki (https://flic.kr/p/VKxWhB) by Jorun Tharaldsen (https://www.flickr.com/photos/46063510@N03/), on Flickr

(https://farm5.staticflickr.com/4318/35279684373_72c16a54bb.jpg) (https://flic.kr/p/VKxB3e)
P7126565.jpg Unknown plant (https://flic.kr/p/VKxB3e) by Jorun Tharaldsen (https://www.flickr.com/photos/46063510@N03/), on Flickr

Title: Re: Identification of bush with three-lobed leaves
Post by: John J on July 23, 2017, 04:57:59 AM

Jorun, the only thing that comes to mind when looking at those leaves is Brousonnetia papyrifera. Could they have been cut down to keep them growing low? Sorry, that's all I can come up with.

Title: Re: Identification of bush with three-lobed leaves
Post by: JTh on July 23, 2017, 09:11:45 AM

Thank you, I believe you are right, John. I found a reference to this in an article 'The vascular flora of the Byzantine Walls of Thessaloniki'  Nikos Krigas, et al. (Willdenowia, 29(1/2):77-94).
Published by the Botanic Garden and Botanical Museum Berlin (BGBM) , http://www.bioone.org/doi/pdf/10.3372/wi.29.2907

Here it is described as one of the 28 xenophytes which are successfully established and well represented in the surroundings of the wall. It is not mentioned as a threat in any way, although it is described as a terribly invasive weed in many other countries.