Autumnwood Flowers can be found on three different Autumnwood-trees embedded in their Autumnwood Leaves, only in Forest-biomes. These flowers are blocks that can be placed and even used as building-material. Currently (as of R25 in November 2015) Autumnwood Flowers do not regrow, so you won't find more and more of them in time in your Creativerse game-worlds. Autumnwood Flowers can be looted or pet-harvested from Autumn Leafies occasionally. If placed into Flower Pots, Wood Planters or on Wall Shelves these flowers will not make any creatures spawn though.