the first two pics look like female, but the third is too far away to tell. maybe get a better pic of the third one. but on the second one it is a little difficult to tell because on the left of the node it looks like a female hair type thing, but on the right it looks like a ball like shape forming. but i still am leaning towards female. the third i would look close. a female is a hair type thing but a male is easy to tell. it really looks like a little ball forming at the node. if you still can't tell post another pic and try to get more advice.