A lot of bark,
But no one notices.
A lot to bite,
And everyone cares.
I'm not a dog,
If anyone notices.
And there's a lot to me,
But I don't have hair.
I stand up straight,
If you've noticed me.
I've got lots of limbs,
If anyone cares.
I can give you shade,
If you've noticed it.
And I do even more,
I give you air.