The middle part of the daffodil flower is a central bell, bowl or disc-shaped corona (means crown). Commonly it is known as a cup or Trumpet, and it can be the same color as the petals or a contrasting single or multiple color.
the middle of a Daisy is called capitulum
the stigma
stem
thistledown
A dandelion is a plant with the botanical name Taraxicum officianale, whether it alters colour or not doesn't change what it is.
Dandelion
Dandelion root is called "เคกเฅเคเคกเฅเคฒเคฟเคฏเคจ เคฐเฅเค" in Hindi.
Dandelion
hatrakani palle
kakronda
parachute puffs
Keith Richards with his then-partner Anita Pallenberg. Dandelion now goes by Angela.
Seemai Kattu mullangi
That is the seed head.
dandelion of course