flower outside the old bailey london

[rooftop]

Thanks for the 'unanimous' verdict Wabbers!

[aeshna5]

Originally Posted by Dorts

Persicaria affinis, syns. Bistorta affinis. Polygonum affine. There are several named varieties.
It is very rarely found naturalised anywhere other than in London.
Dorts.

I've never seen it truly naturalised in London, though I'm not denying it happens, but it certainly is commonly seen in gardens/parks where it was planted.

[Dorts]

Originally Posted by aeshna5

I've never seen it truly naturalised in London, though I'm not denying it happens, but it certainly is commonly seen in gardens/parks where it was planted.

I was only going by what I've read and heard. This BSBI Distribution map seems to confirm it having been recorded recently in and around London.

BSBI Maps Scheme: Hectad Map

I have not come across it anywhere other than beneath garden walls or where garden rubbish had obviously been dumped, which may well be the sort of places where most of these London records were found.
Dorts.

[pleb]

Yes, Persicaria affinis seems to be the current name for this plant.

Strange about these London records. Kew says the plant comes from rocks and slopes in the Himalayas

Plants & Fungi: Persicaria affinis (knot weed) - Species profile from Kew

so the Scottish records would be expected. Makes you wonder if London botanists use a different criterion from the rest of us when recording plants.

phil

[Dorts]

Originally Posted by pleb

Makes you wonder if London botanists use a different criterion from the rest of us when recording plants.
phil

Dorts.