Assertion : Flowers of Datura are actinomorphic.
Reason: Flowers of Datura can be cut into two equal halves on any radial plane.
In the families brassicaceae (mustard) solanaceae (Datura and chillies) and liliaceae (onion, garlic, Gloriosa), the flowers can be cut into two equal parts on any radial plane. Such flowers are described as actinomorphic.