Question: are conifers seedless vascular plants?
Answer: Seedless vascular plants tends to be like ferns. Unlike mosses (bryophytes) they do have vascular tissue, which is why they have long leaves, or fronds though psilotum (whisk ferns) and equistem (horse tails) don't look like traditional ferns. Conifers are gymnosperms. The are not seedless, they have cones.