males have balls that portrude from the nodes and females have sack like objects that dispurse little hairs, but sometimes it is hard to say because some females can grow larger than normal parts with hairs, but before the hairs appear it can sorta look like male pre-flowers...
Also I know that male balls grow in clusters, so if these pics are singles instead of clusters, would it more likely to be female? I know I am inpatient....sorry