Surprise plant in a forgotten pot

dean

Member
Joined
6 Apr 2012
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1,241
Location
Warrington, Cheshire
Hi All
We had a pot of sedum that was left unattended for a few years and yesterday I noticed this surprise plant in there

Any ideas what it is ?
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dw1305

Expert
Joined
7 Apr 2008
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10,443
Location
nr Bath
Hi all,
Is it rare ?


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Yes it is quite a rare plant.

Southern Marsh Orchid (D. praetermissa) would be my guess, just based on colour.

All Dactylorhiza orchids look pretty similar, but these two have rhomboidal lip.

Cheers Darrel
 

Simon Cole

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Joined
25 Dec 2018
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470
Location
Buckingham
They are so similar that most botanists tend to describe them under the genus name, plus they hybridise easily and there are various pure subspecies. Some work has been done to look at genetic differentiation, although this tends to be equally prevalent within each population as is also evident in the differentiation between species. This means that any genetic attempt to understand the current taxa has highlighted ambiguity. Botanists instead tend to describe species based on populations in a specific area. There is no real way to tell from the vegetation. It could even be an ancient form of the Irish type if the sedum was planted in peat.
 

dean

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Joined
6 Apr 2012
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1,241
Location
Warrington, Cheshire
So I’m in Warrington Cheshire
(Northwest) so the seed could of come via bird or possibly wind from wales or even Ireland or even in clothing when we visit family in the south
So it’s anyone guess what it actually is

But one things for sure it’s a very beautiful native plant
Any tips on how to propagate it ?
Im sure that the pot it is in contains 95% gravel


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Simon Cole

Member
Joined
25 Dec 2018
Messages
470
Location
Buckingham
Dean, I hope that you are up for a challenge. I would have a go at tissue culture, which I believe is a growing hobby in the USA. This video I found very interesting a while back. Often certain growth hormones are added to aquarium plants to create compact growth and multiple shoots, but orchids have been traditionally farmed in the far east without the need for them.
 

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