Questionable stems on blackberries

Question

Stems coming up with the blackberries are very similar but the blackberry stems have 3-leaf clusters and the new growth has 5-leaf clusters and, as yet, no evidence of fruit. I do not know if other blackberry varieties have a different leaf arrangement. Do you have a suggestion?

Answer 1

Blackberry leaves can be 3 to 5 leaflets.
Here is a link.

http://www.hort.purdue.edu/ext/senior/fruits/blackberry3.htm