vascular taxa  search
RTLycopsida
 morphology
 Psilopsida
 Pteridophyta
 Pteropsida
 Sphenopsida
SNMeaning includes division of plants with vascular systems including the Psilopsida, Sphenopsida, Pteropsida, and Lycopsida. Before 1993, also search vascular plants if applicable. Added to Thesaurus in 1993.