What is Dennerle's C. cordata? - Cryptocorynes - Aquatic Plant Central

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Old 12-13-2016, 12:22 AM   #1 (permalink)
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Default What is Dennerle's C. cordata?

Hey everyone, just wondering what var. of cordata this plant is. Anyone know? Is it cordata, siamensis, etc....
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Old 12-13-2016, 05:59 PM   #2 (permalink)
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Default Re: What is Dennerle's C. cordata?

Cordata var cordata is my understanding. Its definitely different than my cordata siamensis

Siamensis in the front



Denerle cordata behind that much duller looking leaves

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Old 12-14-2016, 03:10 AM   #3 (permalink)
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Default Re: What is Dennerle's C. cordata?

Thanks! Was my understanding, too.
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Old 05-10-2017, 05:51 AM   #4 (permalink)
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Default Re: What is Dennerle's C. cordata?

Here is a great quote from Jacobsen and Bastmeijer (2014):

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To make a long story short: almost all Cryptocoryne cordata plants in our aquaria today belong to var. siamensis. If you have it growing successfully in your aquarium there is a more than 90% chance that it is var. siamensis. And even if it is not growing well, there is probably still a more than a 90% chance that it is var. siamensis. If it were one of the other varieties of Cryptocoryne cordata it would most likely be dead by now. Of course, if you are one of the few people keeping aquaria with a pH of 4  5, you may have something else, but even then there is a good chance that you may have var. siamensis.
Jacobsen, N., and Bastmeijer, J.D. 2014. On Cryptocoryne cordata var. siamensis. Aquatic Gardener 27(3): 2939. can be accessed here.
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