Spider Orchid

Spider Orchids are native to the temperate forests of the Northeastern Threshold as they stretch out towards the Pole of Wood. They grow in the bottom branches of trees, feeding from the nutrients of their host. Spider Orchids get their name from their roots, which are thread-thin and hang down from the branches, reaching the ground and tunneling into it, where they form a complex and very sturdy underground system. The root-filaments between the plant in the tree and the system underground are stretched taut and happen to be as strong as good steel wire. Because of their thinness and lack of color, the root-filaments form a nearly-invisible web which can slice through creatures which pass through it. For this lethal web, the Spider Orchids gained their name.

Some savants theorize that the Spider Orchids use their root-webs to kill passing animals and let the blood attract insects which pollinate the Orchids, as pollen-eating insects are less common in the underbrush-sparse floors of coniferous forests.

Source: Telgar on the Exalted unofficial wiki