Minecraft wiki entry for Development_versions, associated text: Commonly found in taiga, taiga hills, and taiga mountains biomes.
Rarely found in snowy taiga, snowy taiga hills and snowy taiga mountains biomes.
Can be planted from sweet berries.
Have 4 stages of growth: 'sapling', 'no berries', 'some berries', and 'full berries'.
Drop 1–2 berries in younger stage, 2–3 in full growth stage.
They're harvested with right-click.
Support bonemeal usage.
They slow movement of all mobs in all stages of growth.
Any mob can stand inside them, but they deal damage similar to a cactus if the mob isn't standing still, as long as the bush has grown past the 'sapling' stage.