From what I got so far...2 is in carrot family, 5 is in bean family, and 12 is Saxifragaceae... Please excuse my photo quality.
12. ??? 6. Looks like a Heuchera. https://www.google.co.uk/search?q=h...LB0QXpw4CIBw&ved=0CAkQ_AUoAQ&biw=1920&bih=967