However, there are some plants that produce seeds but don't have traditional flowers as we know them. These plants are called gymnosperms, and they include:
* Conifers (like pines, firs, and spruces) - They have cones that contain seeds.
* Cycads (ancient plant group with palm-like leaves)
* Ginkgoes (a single surviving species)
* Gnetales (a small group of unusual plants)
While these plants don't have the showy petals and structures of typical flowers, they still produce seeds.
So, technically, there is no seed that doesn't come from a flowering plant, but there are plants that produce seeds without having flowers as we typically understand them.
