Alien...or wierd plant ...?

thanks again for your help all:

 

Euphorbia lactea f. cristata

 

really appreciate that, thank you

V

 

that's a nice specimen!!

 

Well done Lila, very weird indeed!!

Ed

 

Grafted onto a Euphorbia lactea. Lila is cristata a forma? I've seen it listed as a cultivar and a variety. Thanks.

 

Yes, I think "cristata" (and "monstrosa") is a forma... A cristata-mutant plant looks very bizarr, because it's FORMA is special! (And you can find cristata forms in nature also, not just in nurseries...) BUT, it could be (and usually it is!) a cv. also, if it's COLOR is also special...
This one is both, a forma cristata because it's special forma, and a cultivar. because it's special color, (and because it's from a nursery... :)... But I don't know it's exact cv.-name... :(

 

Thank you Lila, that clears things up :)