Xylobium a type of Orchid.
xarthiopedia which is a flower in china
yes but you can't find to much information about them.
· Xanthoceras · Xeranthemum · Xylobium
IrisImpatiensIpomoeaIxia
If you mean "U", there are 0 flowers that start with "U".
Runuculus
orchid
Aspidistra.
rose
violet
Tagetes.
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.