@prefix rdfs: . @prefix owl: . @prefix gacs: . @prefix rdf: . @prefix dc: . @prefix skos: . rdfs:label "Concept definition"@en ; a owl:Class . gacs:def_ee7b1981 rdf:value "Plants containing specialized vascular tissue (xylem and phloem) which are more highly evolved than such bryophytes as mosses and liverworts. Vascular plants include ferns, gymnosperms, and angiosperms."@en ; dc:source ; a . gacs:C991 skos:definition gacs:def_ee7b1981 .