Answer: Yes, tuberous begonia flowers are edible. (Don't eat the tubers.) Also, how about Chamomile, Chrysanthemum, Borage, Clover, and Hyssop? Before eating any flower, be sure you have positively identified it, and that it has not been treated with pesticides. Here are a few web sites you might enjoy:
You might enjoy looking through a book such as "The Edible Flower Garden" by Rosalind Creasy.
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