Not only are the plants from ancient Egypt an entirely different species from those sold online, according to UC Berkeley ...

Blue lotus flower, or Nymphea caerulea ... You also may be able to find dried leaves that are used to make tea. According to ...

a blue lotus tea, butterfly pea flower, mint, and salted cucumbers (the punch is served in a bowl with a frozen flower accompanied with tea cups); and the Buttercup with a sweet corn, brown butter ...