(a.) Not deciduous or falling, as the leaves of trees in autumn; lasting; evergreen; persistent; permanent; perennial.

abiding age-long aged amphibian ancient angiosperm annual antique aquatic plant arborary arboreal arboreous arborescent arboresque arborical arboriform biennial bushlike bushy callow chronic citrous conifer coniferous constant continuing cosmopolite cutting deciduous deciduous plant dendriform dendritic dendroid dewy dicot dicotyledon diuturnal durable enduring ephemeral ever-blooming ever-new exotic firsthand fledgling flowering plant fresh fruit tree fungus gametophyte green gymnosperm half-hardy hardwood hardwood tree hardy hydrophyte immature immutable indeciduous intact intransient inveterate lasting long-lasting long-lived long-standing long-term macrobiotic maiden maidenly monocot monocotyl neoteric nestling new nondeciduous of long duration of long standing original perdurable perduring perennial permanent perpetual persistent persisting piny plant pollard polycot polycotyl polycotyledon pristine raw remaining sapling scrubbly scrubby scrublike seed plant seedling sempervirent shade tree shrubby shrublike softwood softwood tree spermatophyte sporophyte stable staying steadfast thallophyte timber timber tree tough tree treelike triennial unbeaten undeveloped unfading unfledged unhandled untouched untried untrodden unused vascular plant vegetable vernal virgin virginal vital weed young