In which plant group would you place a plant which produces spores, has vascular tissue and lacks seed?
Pteridophyte
Pteridophytes are vascular plants and have leaves, roots and sometimes true stems, and tree ferns have full trunks. Examples include ferns, horsetails and club-mosses. Pteridophyte also refers to non-seed vascular plants, i.e. plants with xylem and phloem whose dispersal relies on spore, not seeds.