Plant ID forum: Rex Begonia (Begonia rex-cultorum) hybrid for ID

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JC/NYC (Zone 7b)
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skylark
Apr 3, 2015 10:51 AM CST
this looks like rhizo begonia - but i can't ID the hybrid.
it looks very distinctive.
i found it at Palm Hammock nursery in Miami, FL - they hydridize their own - for hot florida climate.
But they have other ones too. i checked their selling list, but it's not on it.
Thumb of 2015-04-03/skylark/8272f4

North Central Louisiana (Zone 8a)
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LAbegoniac
Apr 3, 2015 12:04 PM CST
This is a Rex Cultorum begonia, likely a large-leaved spiral in classification, probably a Tim Anderson (founder of Palm Hammock) hybrid, probably unnamed. Tim was a prolific hybridizer of many oh so gorgeous plants. He did so many that often they did not get named. Rex Cultorum is a special classification with color filled leaves, all with a species Begonia rex in their background. Interestingly enough, B. rex itself is not classified with its offspring, but is classified as a Rhizomatous, Distinctive Foliage.
JC/NYC (Zone 7b)
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skylark
Apr 3, 2015 12:42 PM CST
i'll search for b.cultorum in var societies. but i have not seen that 'red throat' anywhere.
it's a begonia heaven for sure (Palm Hammock) stuffed with amazing plants. though it has a feel of forgotten kingdom - a la 'sleeping beauty'. i just hope it won't disappear.
i have pics of many NOID. should i do more :)? just so i can put up pretty pix ;)?
North Central Louisiana (Zone 8a)
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LAbegoniac
Apr 8, 2015 11:00 AM CST
Can't hurt. I might know it or maybe not. I can identify most species and many hybrids, but certainly no where near all.
Name: Lin
Florida (Zone 9b)
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plantladylin
Apr 8, 2015 12:17 PM CST
Could it be King Begonia 'Merry Christmas'?

http://www.bing.com/images/search?q=king+begonia+merry+chris...

http://www.suttons.co.uk/Gardening/Flower+Plants/Popular+Flo...
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North Central Louisiana (Zone 8a)
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LAbegoniac
Apr 8, 2015 12:29 PM CST
Can't hurt. I might know it or maybe not. I can identify most species and many hybrids, but certainly no where near all. Re Palm Hammock - so many great things in the plant world are transitory!
JC/NYC (Zone 7b)
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skylark
Apr 9, 2015 11:16 AM CST
'merry xmas' looks very close, but... it looks like it has 3 points on the leaf and the leaf is somewhat longer, and mine has clearly many more tips all around and the leaf is sort of wider and it also has more pronounced burgundy around central veins - could it be culture/light though?
mine also has little hairs on the leaf. and that red throat is very distinctive. should it be always present? i know begonias are very variable and culture plays a big role in color. and 'merry xmas' is the only one one with similar polka-dots and overall color - so, @LAbegoniac , what's your opinion?
North Central Louisiana (Zone 8a)
Planting seeds proves you believe i
LAbegoniac
Apr 9, 2015 2:20 PM CST
Truthfully, there are so many of these Rex Culivars that look so much alike I would have trouble even guessing. There are some Rex C. collectors who would probably know. I'll see if I can copy the two photos and send it to a couple of them. These are very easy to hybridize, but so difficult for most of us to grow that we don't grow them, just as we in the South don't grow tuberous begonias with their beautiful flowers.

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