Minecraft wiki entry for Development_versions, associated text: General
New two block tall variants.
Applying bone meal to them causes them to dispense a flower item that can be collected.
All two-block-tall flowers are renewable.
Allium
Can be crafted to magenta dye.
Azure Bluet
Can be crafted to light gray dye.
Blue Orchid
Can be crafted to light blue dye.
Lilac
Can be crafted into 2 magenta dye.
Oxeye Daisy
Can be crafted to light gray dye.
Peony
Can be crafted into 2 pink dye.
Poppy
Replaced the rose flower.
Iron golems now drop poppies instead of roses.
Rose Bush
Can be crafted into 2 red dye.
Sunflower
Faces east.
Can be grown, unlike poppies and dandelions.
Can be crafted into 2 yellow dye.
Tulips
Comes into red, orange, white, and pink varieties.
Can be crafted to red, orange, light gray, and pink dyes, respectively.