N'keh-Shub

From LSWiki

This creature resembles a massive tree composed of glthuegln, the tough, stretchy, knotted organic material common to the spawn of the lloigor Shub-Niggurath, though the comparison is rough. Its three hooved legs very nearly look like a tripartite trunk, the dark-green-slime-dripping mouths dotting its body could perhaps be mistaken for boles in poor enough light, and the four writhing tentacles atop it are a bit like tree limbs. No head or sensory organs are in evidence. These things are thought to be the spawn of the lloigor Shub-Niggurath, and so are called her Dark Young.