Strobilae are the cone-like structures on some plants, like pine trees, where the seeds are made.
Strobilae are a part of plants and are important for making new plants.
Examples:
The pine tree has strobilae on its branches.
I found some strobilae on the forest floor.
Strobilae are where the pine tree makes its seeds.
The squirrel found a strobilae and ate the seeds inside.
The strobilae on the giant tree were as big as my head!
The strobilae look like little pine cones on the tree.