A silicula is a type of fruit that is like a pod and is found in plants like mustard and cabbage.
A silicula is a part of a plant and is not something people usually talk about.
Examples:
The silicula holds the seeds of the plant.
I found a silicula in the garden.
The silicula is small and green.
The silicula is like a tiny pod.
The silicula is the plant's tiny treasure chest.
The silicula is an important part of the plant's life cycle.