Answer:
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
I am an English word that is as long as I am valued.
I have roots nobody sees. I am taller than trees. Up up I go but I never grow.
I am a vegetable that bugs stay away from
It rows quickly with four oars but never comes out from under its own roof. What is it?
I am always hungry, I must always be fed. The finger I lick will soon turn red. What am I?