yes but you can't find to much information about them.
· Xanthoceras · Xeranthemum · Xylobium
Xylobium a type of Orchid.xarthiopedia which is a flower in china
IrisImpatiensIpomoeaIxia
If you mean "U", there are 0 flowers that start with "U".
orchid
Aspidistra.
Runuculus
rose
Tagetes.
violet
Some flowers that start with the letter "P" include peonies, pansies, poppies, and petunias.
Urgenia, Xeranthemum and Zinnia are flowers. They begin with letters U X and Z.