Plant ID forum: (Eucalyptus robusta)

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Name: Melanie Long
Lutz, Florida (Zone 9b)
Larva tested, Pupa approved!
Butterflies Hummingbirder Birds Bee Lover Enjoys or suffers hot summers Region: Florida
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mellielong
Aug 15, 2015 1:27 PM CST
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[Last edited by mellielong - Dec 21, 2015 1:17 PM (+)]
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Name: Lin
Florida (Zone 9b)
Region: United States of America Morning Glories Region: Florida Houseplants Charter ATP Member I was one of the first 300 contributors to the plant database!
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plantladylin
Aug 15, 2015 1:45 PM CST
I'm really bad at comparing photos for ID but it also resembles Eucalyptus robusta:

https://en.wikipedia.org/wiki/Eucalyptus_robusta
http://www.bing.com/images/search?q=eucalyptus+robusta+cut+w...
http://www.bing.com/images/search?q=eucalyptus+robusta&qpvt=...
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Name: Celia
West Valley City, Utah (Zone 7a)
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Zencat
Aug 15, 2015 1:59 PM CST
E. robusta is also a common tree is FL.
Name: Melanie Long
Lutz, Florida (Zone 9b)
Larva tested, Pupa approved!
Butterflies Hummingbirder Birds Bee Lover Enjoys or suffers hot summers Region: Florida
Celebrating Gardening: 2015 Bromeliad Native Plants and Wildflowers Forum moderator Plant Identifier
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mellielong
Aug 15, 2015 2:12 PM CST
Hmm...after looking at the flower pictures, I wonder if what I thought were seed pods are actually dried flowers?
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Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Aug 15, 2015 3:24 PM CST
Eucalyptus sideroxylon:

The bark is persistent on the trunk and large branches, hard and deeply furrowed, dark grey to black, with upper limbs smooth and whitish.


https://en.wikipedia.org/wiki/Eucalyptus_sideroxylon

Seed pods don't match.

https://www.florabank.org.au/lucid/key/Species%20Navigator/M...

Eucalyptus tricarpa:

https://en.wikipedia.org/wiki/Eucalyptus_tricarpa

https://www.florabank.org.au/lucid/key/Species%20Navigator/M...

Seed pods (gum nuts) don't match.

http://www.nationalarboretum.act.gov.au/living-collection/tr...

The nuts on your tree may not have matured, but they look woody. The 'cap' would drop off eventually.

Eucalyptus microcorys description bears some resemblance, note the stems attaching the nusts (peduncles) but leaves are quite green although those on your tree could be dried out:

peduncle narrowly flattened or angular


http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswf...

Description 8a page 28:

https://www.moretonbay.qld.gov.au/uploadedFiles/common/forms...

The bark looks more stringy:

https://www.google.co.uk/search?q=eucalyptus+microcorys&biw=...

http://www.noosariver.com.au/whatplant/getting-started/picto...

I imagine the tree has been growing in Florida?

Eucalyptus robusta doesn't appear to match.

http://www.noosanativeplants.com.au/plants/215/eucalyptus-ro...

http://database.prota.org/PROTAhtml/Eucalyptus%20robusta_En....









Name: Melanie Long
Lutz, Florida (Zone 9b)
Larva tested, Pupa approved!
Butterflies Hummingbirder Birds Bee Lover Enjoys or suffers hot summers Region: Florida
Celebrating Gardening: 2015 Bromeliad Native Plants and Wildflowers Forum moderator Plant Identifier
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mellielong
Aug 15, 2015 5:05 PM CST
Janet, yes the tree has been growing in Pinellas County, Florida. We have tons of non-natives in this state.
Moderator of the best forum on ATP, the Butterflies, Bees, and Birds forum!
Name: Melanie Long
Lutz, Florida (Zone 9b)
Larva tested, Pupa approved!
Butterflies Hummingbirder Birds Bee Lover Enjoys or suffers hot summers Region: Florida
Celebrating Gardening: 2015 Bromeliad Native Plants and Wildflowers Forum moderator Plant Identifier
Image
mellielong
Aug 15, 2015 5:24 PM CST
Dad emailed me some new pictures so here you guys are:

Thumb of 2015-08-15/mellielong/5305c6Thumb of 2015-08-15/mellielong/8b26ad

Moderator of the best forum on ATP, the Butterflies, Bees, and Birds forum!
Name: Janet Super Sleuth
Near Lincoln UK
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JRsbugs
Aug 15, 2015 6:04 PM CST
That makes things easier! The empty fruits do look like those of Eucalyptus robusta on the following link:

http://www.noosanativeplants.com.au/plants/215/eucalyptus-ro...

There's a good photo showing bark on this link:

http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswf...

Gum nuts stay on the plant much like Callistemon seed pods do, so what appeared to be nuts in the first photos could be flower buds which have dried up due to being chopped.

Fruit a thin-walled cylindrical to urn-shaped capsule (8–)10–18 mm × 6–11 (–12) mm, enclosed in a woody hypanthium, opening with 3–4 included to slightly exserted valves, many-seeded.


The description of the wood seems to fit, not sure about the bark though.

bark rough, soft, spongy, fibrous, red-brown


The heartwood is pale red when freshly cut, turning orange-red or red-brown with age; it is clearly demarcated from the up to 5 cm wide, pale brown sapwood. The grain is interlocked, texture coarse. Quartersawn surfaces sometimes have a ribbon figure of light and dark stripes.


It is one of the most widely planted Eucalyptus species and it has been introduced into many tropical, subtropical, and warm-temperate areas


It is used for reforestation and dune stabilization and it is planted to dry-out swamps, e.g. to combat malaria. It is sometimes used for windbreaks and wayside planting, and it has ornamental value.


Eucalyptus robusta is grown from sea-level up to 1600 m altitude, in areas with a mean annual temperature of 16–28°C, a mean maximum temperature of the warmest month of 25–32°C, a mean minimum temperature of the coldest month of 3–12°C, and an average annual rainfall of 700–1800 mm, with a dry season of 1–4 months.


http://database.prota.org/PROTAhtml/Eucalyptus%20robusta_En....

It all seems to fit Eucalyptus robusta.

https://www.google.co.uk/search?q=Eucalyptus+robusta&source=...


Name: Melanie Long
Lutz, Florida (Zone 9b)
Larva tested, Pupa approved!
Butterflies Hummingbirder Birds Bee Lover Enjoys or suffers hot summers Region: Florida
Celebrating Gardening: 2015 Bromeliad Native Plants and Wildflowers Forum moderator Plant Identifier
Image
mellielong
Aug 15, 2015 10:20 PM CST
Thanks, everyone! I have passed the info along to Dad. Sometimes the International Wood Collectors want pieces of stuff and look at it under the microscope and get really scientific with it. I kept hoping they'd get a piece and just tell us.
Moderator of the best forum on ATP, the Butterflies, Bees, and Birds forum!
Name: Janet Super Sleuth
Near Lincoln UK
Charter ATP Member Organic Gardener Garden Photography Bee Lover Dragonflies Cat Lover
Butterflies Birds Plant Identifier I was one of the first 300 contributors to the plant database! Spiders!
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JRsbugs
Aug 16, 2015 5:10 AM CST
I'm still not totally convinced it's Eucalyptus robusta, the sapwood is mentioned as being pale brown and that isn't pale on your tree. It also mentions the sapwood being only up to 5cm wide.

The heartwood is pale red when freshly cut, turning orange-red or red-brown with age; it is clearly demarcated from the up to 5 cm wide, pale brown sapwood


Name: Melanie Long
Lutz, Florida (Zone 9b)
Larva tested, Pupa approved!
Butterflies Hummingbirder Birds Bee Lover Enjoys or suffers hot summers Region: Florida
Celebrating Gardening: 2015 Bromeliad Native Plants and Wildflowers Forum moderator Plant Identifier
Image
mellielong
Aug 16, 2015 1:03 PM CST
Well, if it helps. this one got hit by lightning several times so I'm not sure what that would do to it. My dad's friend suspects it might be a hybrid since he read (and I did, too) that the various Eucalyptus are bad to hybridize amongst themselves.
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