Difference between Thyrsus and Thyrse

What is the difference between Thyrsus and Thyrse?

Thyrsus as a noun is a staff topped with a conical ornament, carried by bacchus or his followers. while Thyrse as a noun is a type of inflorescence; a compact panicle having an obscured main axis and cymose subaxes

We hope you now know whether to use Thyrsus or Thyrse in your sentence.