There are more than 150 species of begonia. They show up everywhere. Some streets in NYC have begonias flowing out of pots. It is a hearty plant and grows in almost all places.
Yesterday, I saw a begonia that I have never seen before. It was similar to the white begonias I plant on my terrace except the leaves had dots on them. I couldn't wait to take a photo of this plant. It is appropriately called the Polka Dot Begonia (Begonia maculate var wightii). There were a variety of polka dots on all the leaves making it appear as if the flowers were crying white tears.
I am now in search of seeds. It was just captivating.