. "higher plants" . "seeds" . . . "seed-producing plants" . . "Seed Plants" . . . "seed-bearing plants" . . "Spermatopsida" . "Spermatophyte" . . . . . "Phanerogamia" . . "spermatophites" . "Phanerogamae" . . "produce seeds" . . . . "phanerogamic" . . "Spermatophyte" . . "similar plants" . . . "spermatophytes" . . . . . "phanerogam" . . "seed plant" . "plants that produce seeds" . . . . . . . . . . "plant seeds" . . . "spermatophyte" . . . . "Phanerogams" . . . . . . . . . . . . . . . . . . "seed-bearing plant" . . "seed plants" . . "Spermatophyta" . . "seed-bearing" .