Supposedly, the knobbly tubers of the plant resemble piles, and according to the doctrine of signatures this resemblance suggests that pilewort could be used to cure piles.
With the exception of the eyes, certain mouthparts and feet, the whole surface of the animal has minute cuticular outgrowths of feathery hairs and knobbly scales.
There is a fir-tree like concentration of spicules running through the body wall with the branches either having rounded or knobbly ends.
The tentacles are very short and somewhat knobbly, giving the oral disc a fuzzy appearance.
Muni usually takes place on specially designed unicycles, which are equipped with strong hubs, large, knobbly tires, high-grip pedals and rugged frames.
It has a knobbly, ridged back and three large bony tubercles on each flank.
Knobbly paired cerata extend down the margins of the smooth notum.
The bark is smooth and pale grey on young trees, becoming square-cracked and knobbly on old trees.