Daffodil vs Daffadowndilly - What's the difference?

As a proper noun daffodil

is (rare).

(archaic|poetic) daffodil.

(wikipedia daffodil)

(en adjective)

Of a brilliant yellow color, like that of a daffodil.

(en noun)

A bulbous plant of the genus , with yellow flowers and a trumpet shaped corona, especially ; the national flower of Wales.

A brilliant yellow color, like that of a daffodil.

* a.'' 1886 , (Emily Dickinson), ''XIX'',

Where Ships of Purple — gently toss —

On Seas of Daffodil —

Fantastic Sailors — mingle —

And then — the Wharf is still!

(daffadowndillies)

(archaic, poetic) daffodil