dandelion

Short definition from Wiktionary

Noun

1. 1
   Any of the several species of plant in the genus Taraxacum, characterised by yellow flower heads and notched, broad-ended leaves, especially the common dandelion (Taraxacum officinale).
2. 2
   The flower head or fruiting head of the dandelion plant.
3. 3
   A yellow colour, like that of the flower.

Adjective

1. 1
   Of a yellow colour, like that of the flower.