Sedum - unknown, Spanish origin

[Hoy]

I collected this plant, probably in Spain 38 years ago. For several years it barely existed and never showed any flowers, but then it "exploded" starting flowering and spreading in my garden.
It is not S anglicum nor album.
But what can it be?

[maggiepie]

I don't have a clue what it could be, Trond but it is really lovely.

[Palustris]

May I try and send the picture to Ray Stephenson at the Sedum Society? He would be able to give a definite name for this.

[ranunculus]

It may be worth searching at the following link, though Ray would be your best bet :-

http://www.sedumphotos.net/v/sedum-ghij/Sedum+hispanicum+_Blue+Carpet_.jpg.html

[Hoy]

May I try and send the picture to Ray Stephenson at the Sedum Society? He would be able to give a definite name for this.

Oh yes, you may, of course Cliff! Sorry, not Cliff but Palustris

[Palustris]

Have sent it off. Will let you know when I get an answer.

[Hoy]

Thanks!

[Roma]

It looks like one I've had for many years.  I keep it in a pot in the greenhouse as the person I got it from warned me that it would take over the whole garden.  It looks very like Sedum brevifolium in 'Handbook of  Cultivated Sedums' by Ronald L Evans (1983).  It comes from South West Europe and Morocco.

[Hoy]

Roma, thank you, I think that's it! At least very similar.
However, I am not afraid that it will take over the garden. Where it grows it is mostly rocky outcroppings and smooth rock. It fits well among the stone and the other stonecrops

[Philippe]

Hi Trond

I have the sedum brevifolium in the garden, and it looks like really the one on your pics.
Be aware however. It's becoming quite invasive in my garden, it surprisingly seems to perfectly tolerate cool and wet conditions. When you touch it, it looses its leaves and every one of them falling on the soil can root easily. So it has long run over the borders of its pyrenean garden distribution and is now in almost every part of my rock garden.
Of course it will generaly not disturb that much the other plants, but once you have it, if it appreciates your weather conditions, it could be it will always be with you 

[Hoy]

Philippe, you precisely describe the behavior!
However I am not particularly afraid of it taking over the garden as the "garden" were it grows is mostly rock! It can't compete with bigger plants and is easily removed from the few beds I have. Neither can it spread as the garden is surrounded by oak and pine woods and the fjord

[Great Moravian]

If the leaves are easily falling off, it should be one of several variants of
Sedum dasyphyllum. In Sedum brevifolium the leaves are
firmly fixed after Cultivated Stonecrops by Ray Stephenson, p. 133.

[Great Moravian]

http://www.floraiberica.org/floraiberica/texto/pdfs/05_085_07%20Sedum.pdf

[Philippe]

Thank you for the link to the sedum flora.
Didn't know that the point with falling leaves or not could be a point of identification?!?
Crassulaceae are so dependent on cultural conditions, that it is possible to have the same plant before the eyes, though thinking they are somehow both different.
I have no pic now, but I'll take a look at my sedum, the flora link you gave will be useful, as simply superficial visual identification often doesn't help much with those plants.
I already had a form of the S.dasyphyllum, which was to my eyes quite different from the brevifolium. In habit, but in behavior too: it never grew that well, as far as I remember didn't loose its leaves so generously as the pseudo brevifolium, and finally died without having even spread around by no way.
Yes, looks like there's something to search for between those two plants 

[Great Moravian]

There exists a lot of similar plants. Their identification is
obscure. Several years ago I brought a species collected
on house-walls in Northern Italy. It had alternate
leaves and was not sufficiently hardy.
The commonest one in cultivation is the robust and
hardy Sedum dasyphyllum var. suendermannii.