At first, I thought 'Silent Sentry' had two lateral branches and then the terminal was a three way, but the longer I look, I think it has three lateral branches and a terminal 'Y'. The first two lateral branches terminate in 'Y's' also, so there is a total of seven branches. Or you could express it as three way lateral branching with terminal 'Y'. A branch will normally have 4 or 5 buds each.

'Savannah Débutante' appears to have three way top branching to me. Each branch seems to have a cluster of buds.
Ed

Thank you, Ed. That makes sense now. On Silent Sentry, I wasn't sure if the branch on the right was one or two. I didn't even think about a terminal branch. For the most part, mine are two-way and three-way branching then, with a few exceptions like SS which is 7 (it's several years older than most of mine). Probably need to give my others a few more years, since I bought most of them in the last two years. I will go out and double check some of my records to make sure.

Vickie