Multiple choice

All the florets are disc florets in _______.

  1. vernonia

  2. launaea

  3. sunflower

  4. tridax

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vernonia (a genus in Asteraceae) is characterized by having only disc florets and no ray florets. This makes it different from sunflowers, Tridax, or Launaea which typically have both ray and disc florets in their capitulum (inflorescence head).