Explanation:
B
Cyathium: This type of inflorescence is found in genus euphorbia of family-Euphobiaceae, also found in genus pedilanthus of the family.
- In this inflorescence there is a cup-shaped involucres (formed by fused bracts), often provided with necter secreting glands.
- The single female flower, represent by a pistil, in the centre, situated on a long stalk.