Greatwood Tree (Thaumcraft 4)

The Greatwood Sapling is a sapling added by Thaumcraft 4, which grows into a Greatwood Tree. The Greatwood Tree is harvested to gain Greatwood Logs (and possibly Greatwood Leaves). They can be found naturally in Forests.

Every 1/8 Greatwood Trees spawned naturally in the world is haunted by spiders; the Greatwood Tree will be covered with Cobwebs, and a Cave Spider Monster Spawner will be underneath one of the bottom Greatwood Logs. However, under that Spawner is a random Dungeon Chest.

Greatwood is known to have good capabilities of absorbing magic making them used in a lot of crafting in Thaumcraft 4.

Trivia

 * Greatwood logs and planks are classified as a "transparent" block, meaning that they cannot pass a redstone circuit neither can fences be attached to them.