Minecraft's biomes are home to a diverse range of flowers that you can collect throughout your playthrough.
Some biomes contain just one type of flower such as the sunflowers in the sunflower plains.
Similarly, blue orchids can only be found in swamps and specific biomes which are very rare biomes.
The rarest flower is allium, which can spawn only in the flower forest which is one of the rarest biomes in the game.
Allium is used to get magenta dye and offers fire resistance for three seconds.