Rotala sp. Green Narrow?? - Plant Physiology & Emersed Culture - Aquatic Plant Central

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Old 05-20-2007, 11:52 AM   #1 (permalink)
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Default Rotala sp. Green Narrow??

Is there such a plant? I have a version of Rotala sp.green that is much narrower and more pointed then normal rotala. Does anyone know of anything like this? I think i see more of this variety in amano's tanks then the normal rotala that is floating around in the states?

Thanks for the help.

jB
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Old 05-20-2007, 06:45 PM   #2 (permalink)
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Default Re: Rotala sp. Green Narrow??

The Sp.green I have has finer leaves then the rotundifolia and colorata I have in my tank.
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Old 05-20-2007, 07:03 PM   #3 (permalink)
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Default Re: Rotala sp. Green Narrow??

Yes, I'm keep Rotala sp. 'green' from two different sources in extremely identical setups and one is much narrower than the other.
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Old 05-21-2007, 12:56 PM   #4 (permalink)
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Default Re: Rotala sp. Green Narrow??

There definitely is one that's narrower than the traditional 'green'. I got mine from Aquaforest during the AGA convention. They had it in a few of their display tanks and it was immediately distinguishable from the regular stuff (growth pattern is the same). I really like it but can't say what it is exactly.
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Old 05-22-2007, 09:09 AM   #5 (permalink)
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Default Re: Rotala sp. Green Narrow??

My Rotala sp. "Green Narrow" actually converted back to normal "Green" just a few weeks ago. I happen to have both types in my tank and now they all look completely the same. The 'narrow' was growing very slowly, but it certainly grows fast now like the normal "Green" does. I suspect my "Green Narrow" was just a deformed specimen that people grow and sell as a new species/type.

Jason, do you have a pic of your 'Green Narrow' to show folks here to see if we all have the same thing?

Max
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Old 10-04-2007, 10:18 AM   #6 (permalink)
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Default Re: Rotala sp. Green Narrow??

I'm bringing this topic back to light. I believe there are definitely two types of Rotala sp. 'Green' in the hobby at the moment. The following pictures were taken from the same tank within minutes of each other at similar exposures. The alleged Rotala sp. 'Green Narrow' (obtained through Cavan from Aqua Forest) is planted on the left side of the tank and the 'normal' variety of Rotala sp. 'Green' (obtained long ago through a trade) is on the right side of the tank.

Here's a close-up of the two. Again, the Rotala sp. 'Green Narrow' is on the left. Notice how the leaves are slightly thinner and grow more upright.


Here's a full shot of the growth pattern of each plant. Notice how the Rotala on the left differs again, not only in appearance, but also in growth pattern. The Rotala sp. 'Green Narrow' has a more vertical growth pattern. Both stands of stems were trimmed at the same time in the same manner.



All this isn't to say that the two are necessarily different species. It's very likely that they are the same species from two different original collection locations. However, I do feel that the differences are great enough to warrant a distinction.
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Old 10-04-2007, 10:24 AM   #7 (permalink)
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Default Re: Rotala sp. Green Narrow??

Aaron, Nice photos...and yes the difference is very noticable. Would you say it's easier to get a dome affect with the regular version?
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Old 10-04-2007, 10:34 AM   #8 (permalink)
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Default Re: Rotala sp. Green Narrow??

Quote:
Originally Posted by Roy Deki View Post
Aaron, Nice photos...and yes the difference is very noticable. Would you say it's easier to get a dome affect with the regular version?
Thanks Roy. Yes, the regular version is much easier to shape into a nice 'bush'.
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Old 10-25-2007, 09:11 AM   #9 (permalink)
 
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Default Re: Rotala sp. Green Narrow??

Are both the narrow and normal form still different when emersed?
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Old 10-27-2007, 07:23 PM   #10 (permalink)
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Default Re: Rotala sp. Green Narrow??

I don't how this actually plays in, but I trimmed a similar stand of rotala sp. green about a month ago and the subsequent new growth has taken on the look of a thin, long leafed species. Two very different looks. Something of note that has changed is the lighting over the tank. Previously, I had a Solar One system hanging above the tank (60-P) and after the trim I switched lights to a Power Compact system with 130 watts of 6500K light. I don't know enough about the science involved to comment one way or another on why the plant is growing differently, but...... My plant growth looks just like Aaron's photos showing the rotala sp. green in his collection from 2 seperate sources.
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