Rabicano causes roaning on the flank area and a coontail. Any horse that has a coontail has rabicano.
Here is a very loud (Arabian, no less) rabicano:
Less loud rabicano
Also common for rabicano to cause "striping" on the barrel that is mistaken for brindling.
Rabicano is common in a couple of QH lines, particularly those bred for cutting (Ie, the Smart Little Lena line).