All ______ produce naked seeds.
gymnosperms
Gymnosperms are seed-producing plants, but unlike angiosperms, they produce seeds without fruits. The word “Gymnosperm” comes from the Greek words “gymnos”(naked) and “sperma”(seed), hence “naked seeds”. These plants develop male and female flowers on the surface of scales or leaves, or at the end of stalks forming a cone-like structure. E.g. pinus, cycas etc.