oxalis versicolour

Just been given one of these bulbs, know nothing about them, can anyone help please?

 

I have some, planted them about a month ago and they don't look anything like the picture in the catalogue! They look well enough though on my kitchen window sill.

 

this is the best I can come up with
http://www.desert-tropicals.com/Plants/Oxalidaceae/Oxalis_versicolor.html

 

Got some planted in the Alpine House rock garden. They are not showing at present, but the flowers and leaves do match the pictures.

 

Although I love the pink-flowered Oxalis, I abhore them otherwise as the yellow one from Africa has taken the Algarve over and there is barely a spot of earth where you cannot find the seedlings/bulblets ... at any time of the year and they send roots that go to hell! :eek:

However, this variety with a possible six-inch bulb is some other sort that I would imagine wouldn't be invasive.

 

It is a very large family and only Oxalis cornuta is really invasive (in colder climes at least). O. laciniata and magellanica and the others from S. America are small beautiful plants well deserving the name Satin Flowers. O. Ione Hecker is a fabulous purple goblet.

 

Thank you again Dendrobium and also to Waco, Palustris and Lady of Leisure, for your info. and observations, all most helpful.