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Plant Identification: SOLVED: need ID for tree growing in Los Angeles

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Forum: Plant IdentificationReplies: 12, Views: 63
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garden18
Sherman Oaks, CA

December 19, 2012
7:01 PM

Post #9362675

Please help me ID this tree. Stems are curious, look like they have been eaten away by some mysterious creature although this appears to be normal growth habit.
Thanks!

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singhg45
Delhi
India

December 19, 2012
7:06 PM

Post #9362680

Looks like Corylus, the hazelnut

This message was edited Dec 19, 2012 8:10 PM

growin

growin
Vancouver, BC
(Zone 8b)


December 19, 2012
7:07 PM

Post #9362681

Looks like a Winged Elm (Ulmus alata) http://davesgarden.com/guides/pf/go/63292/
garden18
Sherman Oaks, CA

December 19, 2012
7:12 PM

Post #9362684

Which species? The stems on this tree are rough. Coryllus stems look smooth. Am I missing something?
garden18
Sherman Oaks, CA

December 19, 2012
7:14 PM

Post #9362685

Yes, growin, thank you! My photo matches up perfectly with pictures on your link. It is definitely Ulmus alata.
garden18
Sherman Oaks, CA

December 19, 2012
7:20 PM

Post #9362690

Sorry, I thought this was solved but my foliage really does look like Corylus (hazelnut) even though stems look like those on Ulmus alata! My foliage is much wider and less regular than that found on Ulmus alata.
singhg45
Delhi
India

December 19, 2012
7:24 PM

Post #9362694

Ulmus alata has much smaller leaves, barely 3 cm broad.

http://www.efloras.org/object_page.aspx?object_id=41425&flora_id=1

The leaves match fairly well with Corylus colurna, although it could well be another species

http://www.esveld.nl/htmldiaen/c/cocolu.htm

garden18
Sherman Oaks, CA

December 19, 2012
7:33 PM

Post #9362697

Hi Singhg45,
Thanks for trying but your twigs are smooth, mine are winged.
singhg45
Delhi
India

December 19, 2012
8:19 PM

Post #9362716

Yes the winged stems may be crucial and distinctive, although leaves don't seem to be matching.

growin

growin
Vancouver, BC
(Zone 8b)


December 19, 2012
8:30 PM

Post #9362719

Maybe Ulmus thomasii.
singhg45
Delhi
India

December 19, 2012
9:09 PM

Post #9362743

Yes Growin, you finally got it, both nature of wings and leaves were troubling me. Ulmus alata has two opposite wings, here they are irregular corky in U. thomasii, larger and broader leaves, clearly unequal at base.
garden18
Sherman Oaks, CA

December 19, 2012
10:05 PM

Post #9362754

Ok, growin, I think you got it and thank you. We have an anomaly here. Look at geographical distribution and you will notice that Ulmus thomasii is found 2000 miles east of California! Also, literature says that this tree is not found in commerce, i.e. nursery trade, which means that it is probably from a seed that somehow hitched a ride West!

growin

growin
Vancouver, BC
(Zone 8b)


December 19, 2012
10:15 PM

Post #9362757

http://www.inaturalist.org/observations/136656

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