Delphinium Larkspur mix-up:(

[bussinspain]

Hi. I have some Delphiniums and Larkspurs that I have grown from seed. One day there was this big wind! And yup, you guessed it, the pots got blown over (complete with the greenhouse that they were in) and are now muddled up. Question 1. How do I tell the difference between the two types and question 2. Do I pinch out the growing tips before planting out?

[WendyC]

They are very similar! I could probably tell the difference with a photo.