bryophyta: a division of nonflowering plants characterized by rhizoids rather than true roots and having little or no organized vascular tissue and showing alternation of generations between gamete-bearing forms and spore-bearing forms; comprises true mosses (Bryopsida) and liverworts (Hepaticopsida) and hornworts (Anthoceropsida)
division: (botany) taxonomic unit of plants corresponding to a phylum
betterment: an improvement that adds to the value of a property or facility