Please Help I.D. This Plant

nemesis XXL · 11-03-2009, 07:33 PM

I would like to know what the stem plant on the left in this picture is. Your help is appreciated.

Thanks,
Chris

**FrostyNYC** · 11-03-2009, 08:10 PM

Looks like Ludwigia palustris.

**bsmith** · 11-03-2009, 09:05 PM

Ludwigia repens x arcuata

**FrostyNYC** · 11-03-2009, 09:41 PM

"Synonyms: Ludwigia palustris (erroneous)"

Does that mean that Ludwigia palustris doesnt exist anymore?

**bsmith** · 11-03-2009, 09:50 PM

Correct.

Tinanti · 11-03-2009, 10:29 PM

Quote:

Originally Posted by FrostyNYC

"Synonyms: Ludwigia palustris (erroneous)"

Does that mean that Ludwigia palustris doesnt exist anymore?

When it says synonyms there, it means hobby synonyms, not necessarily botanical ones. L. palustris is still a perfectly good species. It's just that L. repens x arcuata is ofetn sold in error as L. palustris, hence the "erroneous".

Real L. palustris is very common and can be found everywhere it seems.

**bsmith** · 11-03-2009, 10:32 PM

I figured it was like r.rotundifolia and r.indica.

Tinanti · 11-04-2009, 12:35 AM

Quote:

Originally Posted by bsmith

I figured it was like r.rotundifolia and r.indica.

It is; both are valid species (one a hybrid in this case), but one is mistaken for the other. An example of what you're thinking of would be Helanthium tenellum (new) vs Echinodorus tenellus (old).

Tinanti · 11-04-2009, 01:35 AM

Just to clarify, I was referring to the Ludwigia repens x arcuata as the hybrid.

11-03-2009, 07:33 PM	#1 (permalink)
nemesis XXL Algae Grower (View User Tanks) PTrader: (3/100%) Join Date: Oct 2009 Location: Spanaway Posts: 20	Please Help I.D. This Plant I would like to know what the stem plant on the left in this picture is. Your help is appreciated. Thanks, Chris Attached Thumbnails __________________ The glass is neither half-full nor half-empty: it's twice as big as it needs to be. Ride it like you stole it. If you have to ask "how much?" you can't afford it. Reality is an illusion that occurs due to the lack of alcohol. Pimpin' ain't easy....

11-03-2009, 08:10 PM	#2 (permalink)
FrostyNYC Nano Tank Fiend (View User Tanks) PTrader: (12/100%) Join Date: Nov 2007 Location: NYC & Long Island, NY Posts: 1,373	Looks like Ludwigia palustris. __________________ My 10 Gallon Journal

11-03-2009, 09:05 PM	#3 (permalink)
bsmith Proud member of SLAPS (View User Tanks) PTrader: (149/100%) Join Date: Jan 2007 Location: St.Louis, MO Posts: 4,242	Ludwigia repens x arcuata __________________ FilStar proponent #91 XP1 & XP3 I have a 2213 and a 2222 too, my Eheim # is 299. What now? VP Member #4 "Regulator's Mount Up" VTS-253A Mini-M Agent #007 My 37 Cube and Mini-M L183's

11-03-2009, 09:41 PM	#4 (permalink)
FrostyNYC Nano Tank Fiend (View User Tanks) PTrader: (12/100%) Join Date: Nov 2007 Location: NYC & Long Island, NY Posts: 1,373	"Synonyms: Ludwigia palustris (erroneous)" Does that mean that Ludwigia palustris doesnt exist anymore? __________________ My 10 Gallon Journal

11-03-2009, 09:50 PM	#5 (permalink)
bsmith Proud member of SLAPS (View User Tanks) PTrader: (149/100%) Join Date: Jan 2007 Location: St.Louis, MO Posts: 4,242	Correct. __________________ FilStar proponent #91 XP1 & XP3 I have a 2213 and a 2222 too, my Eheim # is 299. What now? VP Member #4 "Regulator's Mount Up" VTS-253A Mini-M Agent #007 My 37 Cube and Mini-M L183's

11-03-2009, 10:32 PM	#7 (permalink)
bsmith Proud member of SLAPS (View User Tanks) PTrader: (149/100%) Join Date: Jan 2007 Location: St.Louis, MO Posts: 4,242	I figured it was like r.rotundifolia and r.indica. __________________ FilStar proponent #91 XP1 & XP3 I have a 2213 and a 2222 too, my Eheim # is 299. What now? VP Member #4 "Regulator's Mount Up" VTS-253A Mini-M Agent #007 My 37 Cube and Mini-M L183's

11-04-2009, 01:35 AM	#9 (permalink)
Tinanti Planted Member (View User Tanks) PTrader: (0/0%) Join Date: Aug 2005 Location: Somewhere in the Florida panhandle Posts: 164	Just to clarify, I was referring to the Ludwigia repens x arcuata as the hybrid.

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