Minecraft wiki entry for Vines, associated text: A screenshot by Jeb of a floating island with vines.
Griefing with vines in the Beta 1.8 pre-release.
Growing player-placed vines.
Vines hanging from trees in the swamp.
Vines in a jungle biome.
Vines growing from the edges of small jungle trees.
Vines growing in a cave.
Vines on a jungle temple.