Q: How can I tell Virginia dayflower, Commelina virginica, from Asiatic dayflower, Commelina communis?
A: The easiest way is to look at the flowers. Commelina virginica has three blue petals. Commelina communis has two blue petals and one white one.
Virginia Dayflower
Asiatic Dayflower
Asiatic Dayflower #2
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