These are called gymnosperms. Their seeds are called cones. The conifers are one large group of gymnosperms. This group supplies wood and wood products. They keep their leaves year round.
Some examples are pines, redwood, fir, spruce, and cypress.
The other group of seed bearing plants is called angiosperms. This group supplies beauty, cloth, wood, medicine and food. They lose their leaves each year. Some examples are tulips, wheat, rice, cotton, tomatoes and many others. These plants have flowers.