Marigolds are dicots. Monocots are grasses, corn, etc. Monocots have parallel veins and do not grow very large in diameter.
dicot
tulip
Grass is a monocot plant.
The genus for marigold is Tagetes. The common name for marigold is also marigold.
monocot
MONOCOT
Monocot
Which one? African Marigold is Tagetes erecta, the French Marigold is Tagetes patula, the Marsh Marigold is Caltha palustris or the Corn Marigold Chrysanthemum segetum.
Betel leaf - MONOCOT
monocot
monocot
monocot