Purple wildflower (stalk) - help

I was out today looking for spring flowers and came across a goup of these. There wer both purple and white varieties in the flower patch.

So what is it. Any help would be appreciated.

(C&C on the phot welcome as well)

Charlie

 

A species of Corydalis, possibly Corydalis cava or Corydalis solida.

Photos of the lower leaves might help determine which species it is.

 

Call me crazy, but it looks like a Dactylorhiza to me -- they come in white, as well.

 

Corydalis.

 

This is very probably Corydalis cava. The only lookalike in Switzerland is Corydalis intermedia and this plant has got only 1 to 8 flowers according to the "Flora Helvetica". Corydalis solida has got incised bracts. Therefore it can be excluded.

 

Wow. I wish we had that growing wild over here. It's lovely.