Affected site: https://www.minecraft.net/en-us/about-minecraft
A blue rose appears on an image on this site. Roses were removed from Minecraft Java in 1.7.2, back in 2013, and blue roses were exclusive to Minecraft Pocket Edition, but were removed in 0.9.0, back in 2014.
[media][media]
This is art – it's not necessarily reflective of the actual in-game characteristics. 🙂
(Resolution based on WEB-2864)