chestnut burr.

Bowser the Hound did have a surprise. He was hunting Reddy Fox, and
he almost ran into Prickly Porky before he saw him. The very sight
of those thousand little spears sent little cold chills chasing each
other down Bowser's backbone clear to the tip of his tail, for he
remembered how he had gotten some of them in his lips and mouth
once upon a time, and how it had hurt to have them pulled out.
Ever since then he had had the greatest respect for Prickly Porky.

"Wow!" yelped Bowser the Hound, stopping short. "I beg your pardon,
Prickly Porky, I beg your pardon, I didn't know you were taking a nap
here."

All the time Bowser the Hound was backing away as fast as he could.
Then he turned around, put his tail between his legs and actually
ran away.

Slowly Prickly Porky unrolled, and his little eyes twinkled as he
watched Bowser the Hound run away.

"Bowser's very big and strong;
His voice is deep; his legs are long;
His bark scares some almost to death.
But as for me he wastes his breath;
I just roll up and shake my spears
And Bowser is the one who fears."

So said Prickly Porky, and laughed aloud. Just then he heard a light
footstep and turned to see who was coming. It was old Granny Fox.