Galls: Creepy and beautiful plant parasites

Scienceray has a great, photo-heavy feature on the humble gall, a kind of woody egg-sack that incubates a parasite — bacteria, mites, fungi and insects. They can look utterly Martian, or like something from the realm of faerie. And they can get to be the size of cats.

The Abnormal, Gruesome Gall – Alien Invader in Your Yard

(Thanks, RJ!)

(Image: Too many galls, a Creative Commons Attribution Sharealike photo from anemoneprojectors' photostream)