Answer:
I am full of holes but still holds water.
My first is a heir; My second's a snare; my whole is the offspring of fancy; which I sent out of play upon Valentine's day As a token of love to my Nancy.
I am flora, not fauna. I am foliage, not trees. I am shrubbery, not grass. What am I?
I'll bring out your bulls and slow your roll. I may even come out of your skull.
I hide but my head is outside. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?