help ID 2 Eucalyptus growing in Dubai

[Eric in Orlando]

Anyone have any idea what species these Eucalytus might be? They are growing in Dubai, U.A.E. The 2nd one looks like E. nicholii.

Euc. #1

[Eric in Orlando]

Euc. #2- maybe E. nicholii ?

[philinsydney]

#2 isn't E. nichollii, because nichollii has rough, fibrous bark. However, the leaves are similar to nichollii leaves.

I suspect it is E. scoparia (willow peppermint), which is very closely related but has smooth bark.

I'm not even sure if #1 is a eucalypt.

[philinsydney]

Sorry about the spelling of nicholii

btw id you know they have found a 101m tall euc in Tassie?

http://www.abc.net.au/news/video/2008/10/10/2388145.htm

[fastfeat]

#2 isn't E. nichollii, because nichollii has rough, fibrous bark. However, the leaves are similar to nichollii leaves.

I suspect it is E. scoparia (willow peppermint), which is very closely related but has smooth bark.

I'm not even sure if #1 is a eucalypt.

Philip--

Is E. scoparia a northern or a southern species?

I would suspect that southern species would not thrive in the heat of UAE.

I was thinking it might be E. papuana or possibly E. camaldulensis, though it is hard to tell if that patch of darker bark is persistent (camaldulensis) or annular shedding (papuana). Close-ups of capsules would definitely be helpful.

My experience with eucs, is, unfortunately, limited to the handful of species that have made it into cultivation into the States.

I too have my doubts that the first tree is a euc. Inflorescence looks more like a Conocarpus or other Combretaceae.

[popper1]

E. scoparia comes from dry, hot regions bordered by NSW & Queensland.

[philinsydney]

Is E. scoparia a northern or a southern species?

I would suspect that southern species would not thrive in the heat of UAE.

I was thinking it might be E. papuana or possibly E. camaldulensis, though it is hard to tell if that patch of darker bark is persistent (camaldulensis) or annular shedding (papuana). Close-ups of capsules would definitely be helpful

You certainly raise good points there.

scoparia comes from a highland area on the NSW/Qld border, so it would be used to frosts during the winter, but hot most of the time.

Corymbia papuana or Corymbia aparrerinja are definitely possibilities;

a lot of Corymbia have that willowy look, and they would enjoy that climate.

camaldulensis also has that pendulous foliage and would be suited to the climate. However, this photo looks a bit too willowy imo.

[fastfeat]

Is E. scoparia a northern or a southern species?

I would suspect that southern species would not thrive in the heat of UAE.

I was thinking it might be E. papuana or possibly E. camaldulensis, though it is hard to tell if that patch of darker bark is persistent (camaldulensis) or annular shedding (papuana). Close-ups of capsules would definitely be helpful

You certainly raise good points there.

scoparia comes from a highland area on the NSW/Qld border, so it would be used to frosts during the winter, but hot most of the time.

Corymbia papuana or Corymbia aparrerinja are definitely possibilities;

a lot of Corymbia have that willowy look, and they would enjoy that climate.

camaldulensis also has that pendulous foliage and would be suited to the climate. However, this photo looks a bit too willowy imo.

Philip--

Thanks for the update on "Eucalyptus" papuana now being in Corymbia. I haven't been keeping up...

Is there an accepted list of Eucalyptus names that have now been included in Corymbia?

[Eric in Orlando]

Ken,

There is over 100 species that were seperated out into Corymbia , 23 are listed on GRIN. One common one is C. citriodora, the Lemon Euc. C. ptychocarpa is a very ornamental red flowering species with big leaves. Unlike other reds, this one will actually grow and flower in FL. We have 2 growing great but still young and haven't flowered. Mark over in Melbourne has them flowering. Its a northern Australian native so is better suited to our humid climate.

Here is from GRIN;

http://www.ars-grin.gov/cgi-bin/npgs/html/tax_search.pl

Corymbia bloxsomei (Maiden) K. D. Hill & L. A. S. Johnson

Corymbia calophylla (Lindl.) K. D. Hill & L. A. S. Johnson

Corymbia citriodora (Hook.) K. D. Hill & L. A. S. Johnson

Corymbia clavigera (A. Cunn. ex Schauer) K. D. Hill & L. A. S. Johnson

Corymbia dichromophloia (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia eximia (Schauer) K. D. Hill & L. A. S. Johnson

Corymbia ferruginea (Schauer) K. D. Hill & L. A. S. Johnson

Corymbia ficifolia (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia gummifera (Gaertn.) K. D. Hill & L. A. S. Johnson

Corymbia intermedia (R. T. Baker) K. D. Hill & L. A. S. Johnson

Corymbia leichhardtii (F. M. Bailey) K. D. Hill & L. A. S. Johnson

Corymbia maculata (Hook.) K. D. Hill & L. A. S. Johnson

Corymbia nesophila (Blakely) K. D. Hill & L. A. S. Johnson

Corymbia papuana (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia polycarpa (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia ptychocarpa (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia setosa (Schauer) K. D. Hill & L. A. S. Johnson

Corymbia terminalis (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia tessellaris (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia torelliana (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia trachyphloia (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia watsoniana (F. Muell.) K. D. Hill & L. A. S. Johnson

Corymbia zygophylla (Blakely) K. D. Hill & L. A. S. Johnson

[Eric in Orlando]

So far this is what we have for these 2 trees;

1st one, Acacia sp.

2nd- Eucalyptus camaldulensis var. obtusa

[fastfeat]

Eric--

Thanks for the list, link.

Jesse Durko has C. ptychocarpa blooming (in season) in Davie (Broward Co). He also had plants for sale.

I could see the first tree as an Acacia, though the oval flower heads in the panicle (usually round--A. auriculiformis, A. baileyana, A. podalyraifolia or rod-shaped (A. melanoxylon, A. longifolia) are somewhat atypical, at least of the species I know.

[bahia]

The first tree is not an Acacia, but Conocarpus lancifolius, and is very commonly planted out in Saudi Arabia, as well as the Emirates. Broadly tolerant of high ph and poor quality irrigation water, and very fast growing. Often used as wind breaks or screen trees, as they are very fast growing. I'd suggest that if you know anyone who works for Bechtel Engineering, you could get a lot of good information of plant lists for that part of the world, as they have done a lot of landscaping work over there, as well as working with completely engineered sites like the one you are consulting on. The Conocarpus lancifolius was used much like a Lombardy Poplar as an accent tree or to form allees on the project I worked on in Riyaadh, back in 1999/2000. On that project, as it was a palace compound for one of the Royal Family, the project ended up importing a lot of the specimen plants from nurseries in Italy, as well as shipping things in from southern California.