Green Shamrock Saint Patrick's Day Floral Graphic Coaster

Serve your guest their drinks on this cool sandstone drink coaster with a great Irish shamrock. The background is red. Although it is not clear what species the shamrock should be, the common wood sorrel or some type of clover, I chose the former. In this case the Oxalis acetosella. I think this plant looks much better than the common clover. Tradition says that shamrock was used by Saint Patrick to teach the holy Trinity. But there is no proof of that. In any case, the shamrock became a potent symbol for Ireland. And of course I use greens for the coloring. The font is Celtic style. The word seamróg is retrieved from the internet. So it must be right!