Difference between Narcissus and Narcissus

What is the difference between Narcissus and Narcissus?

Narcissus as a noun is any of several bulbous flowering plants, of the genus narcissus, having white or yellow cup- or trumpet-shaped flowers, notably the daffodil while Narcissus as a noun is a hero renowned for his beauty and pride.

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