trough invader

[mark smyth]

This plant arrived in one of my troughs this year. It stayed small and didnt flower. Last week I realised it had grown very large and there was a runner haning down the back of the trough. What is it?

[ranunculus]

If that was growing in a trough in Madeira I would have said Zantedeschia aethiopica ... ?  

[mark smyth]

I see where you are coming from.

A measurment would be good - 15cm across and 10cm high 6x3 inches

[mark smyth]

and I should say the conifer is a dwarf Pinus sylvestris

[ashley]

Water plantain, Alisma plantago-aquatica

[mark smyth]

Thanks Ashley but my plant is much smaller

The measurement above is for the mound of leaves

[Lesley Cox]

I was going to suggest it looked like something escaped from a pond?

[Maggi Young]

I was going to suggest a Pinellia, of that plain sort of leaf... but it doesn't make those runner things, does it?

[Paul T]

My first thought was something like an Orontium aquaticum, but it is too small, and I don't think the leaves are slender enough in proportions either.  I too am definitely thinking some sort of water or marginal plant, even without seeing that photo of the runner.  The runner looks VERY much like an aquatic.  What about some form of Calla palustris perhaps?  I don't think the leaves look right for a Caltha?

Anyway, some thoughts to ponder, just in case they help.

[Lesley Cox]

My first thought was something like an Orontium aquaticum, but it is too small, and I don't think the leaves are slender enough in proportions either.  I too am definitely thinking some sort of water or marginal plant, even without seeing that photo of the runner.  The runner looks VERY much like an aquatic.  What about some form of Calla palustris perhaps?  I don't think the leaves look right for a Caltha?

Anyway, some thoughts to ponder, just in case they help.

Do you mean POND er, Paul? Oh God, don't let me join them!

[annew]

Take a hold of yourself, Lesley - don't give in to the temptation....

[Lesley Cox]

I'll try to resist Anne. Shouldn't be too difficult as I always thing of the witty repartee minutes or even hours or days, after the subject has closed.

[Paul T]

Actually, Lesley, that one wasn't deliberate.    Good pick up!!

[cohan]

My first thought was something like an Orontium aquaticum, but it is too small, and I don't think the leaves are slender enough in proportions either.  I too am definitely thinking some sort of water or marginal plant, even without seeing that photo of the runner.  The runner looks VERY much like an aquatic.  What about some form of Calla palustris perhaps?  I don't think the leaves look right for a Caltha?

Anyway, some thoughts to ponder, just in case they help.

Do you mean POND er, Paul? Oh God, don't let me join them!

dare i say it has an air, i see, of the araceae?

[Arykana]

Rumex ? http://www.mindmegette.hu/soska-tavasztol-oszig-45257