Aroids forum: Brazilian Elephant's Ear in the wild for id please

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Name: Myriam
Ghent, Belgium (Zone 8a)
Charter ATP Member Ferns Native Plants and Wildflowers Cat Lover Birds Bee Lover
Organic Gardener I was one of the first 300 contributors to the plant database! Frogs and Toads Plant Identifier
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bonitin
Dec 27, 2011 3:49 AM CST
I first thought it could be an Alocasia specie, but then the genus Alocasia is not listed in the Flora do Brasil
http://floradobrasil.jbrj.gov....

What else could it be?
I found them growing in the rainforest by a river
Thumb of 2011-12-27/bonitin/00bb61 Thumb of 2011-12-27/bonitin/58b9f7 Thumb of 2011-12-27/bonitin/85762c
Name: Myriam
Ghent, Belgium (Zone 8a)
Charter ATP Member Ferns Native Plants and Wildflowers Cat Lover Birds Bee Lover
Organic Gardener I was one of the first 300 contributors to the plant database! Frogs and Toads Plant Identifier
Image
bonitin
Dec 27, 2011 3:53 AM CST
This one was smaller and had softer leaves..

Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Aroids Irises I was one of the first 300 contributors to the plant database! Tropicals Vermiculture
Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge) Composter Plant Database Moderator
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eclayne
Dec 27, 2011 7:54 AM CST

Plants Admin

Hi Myriam, Your first plant looks a lot like a Colocasia, with peltate leaves perpendicular to the petiole. I checked distribution on Tropicos and apparently C. esculenta and other Colocasia have naturalized in parts of South and central America. http://www.tropicos.org/Name/2...
The 2nd plant looks like a Xanthosoma with the veins outlining the leaf margin and the sinus(?) where the petiole meets the leaf.
http://www.tropicos.org/Name/2...

I'm just comparing general characteristics with plants I have. Hopefully Lari Ann and Zig will weigh in.
Evan
Name: Myriam
Ghent, Belgium (Zone 8a)
Charter ATP Member Ferns Native Plants and Wildflowers Cat Lover Birds Bee Lover
Organic Gardener I was one of the first 300 contributors to the plant database! Frogs and Toads Plant Identifier
Image
bonitin
Dec 27, 2011 8:07 AM CST
Thank you Evan, I'm sure you're right with the first one, certainly a Colocasia and I think Colocasia esculenta would make sense, thinking of it, I often found the bulbs (or tubers) for sale in Brazilian food shops, it probably naturalizes that way in places where it is not native...

Charter ATP Member I was one of the first 300 contributors to the plant database!
tropicbreeze
Dec 27, 2011 3:52 PM CST
I agree with Evan, Colocasia does spread rapidly and the Xanthosoma is close to home.
Name: Myriam
Ghent, Belgium (Zone 8a)
Charter ATP Member Ferns Native Plants and Wildflowers Cat Lover Birds Bee Lover
Organic Gardener I was one of the first 300 contributors to the plant database! Frogs and Toads Plant Identifier
Image
bonitin
Dec 27, 2011 4:01 PM CST
Thanks Zig for the confirmation!
Name: Myriam
Ghent, Belgium (Zone 8a)
Charter ATP Member Ferns Native Plants and Wildflowers Cat Lover Birds Bee Lover
Organic Gardener I was one of the first 300 contributors to the plant database! Frogs and Toads Plant Identifier
Image
bonitin
Dec 28, 2011 7:01 AM CST
I found the species name for the Xanthosoma
There are only 3 species native in the state of Rio de Janeiro
http://floradobrasil.jbrj.gov....
Xanthosoma maximiliani is a perfect match! Smiling

Thanks so much for your help Evan and Zig!
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Aroids Irises I was one of the first 300 contributors to the plant database! Tropicals Vermiculture
Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge) Composter Plant Database Moderator
Image
eclayne
Dec 28, 2011 8:25 PM CST

Plants Admin

Myriam, that Flora do Brasil site is fantastic!
Evan
Name: Myriam
Ghent, Belgium (Zone 8a)
Charter ATP Member Ferns Native Plants and Wildflowers Cat Lover Birds Bee Lover
Organic Gardener I was one of the first 300 contributors to the plant database! Frogs and Toads Plant Identifier
Image
bonitin
Dec 29, 2011 9:54 AM CST
It is Evan! Would be even better if it had pictures for each species! Green Grin!

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