No plant species meet the strict definition of “Endemic Plants of Guyana.”
Define endemism as species found only inside Guyana’s political borders. Under that strict rule, no plants qualify. Species once thought unique to Guyana are now known from neighboring Suriname, French Guiana, Venezuela or Brazil. Taxonomy changes, new field records, and the shared ecology of the Guiana Shield remove firm country-only cases.
Understand why this strict test yields no results. Political borders cut across ecological zones. Many rare plants live on tepuis and the Pakaraima Range, which cross Venezuela, Guyana and Brazil. A plant confined to the tepui plateau is a regional endemic, not a Guyana-only endemic. Also, modern databases and herbarium records (GBIF, Kew, Tropicos, IUCN) update ranges as new specimens appear. Species described from Guyana are often later recorded in adjacent countries, so strict country endemism is unstable and rare.
Explore close, useful alternatives. Focus on endemics of the Guiana Shield, tepui-restricted species, or “near-endemics” known from Guyana plus one adjacent country. Look into tepui pitcher plants and other tepui specialists, national conservation lists, and region-wide checklists in GBIF or Kew. For this topic, build a vetted list of Guiana Shield endemics, habitat groups (tepuis, lowland forest, riverine), and species of conservation concern rather than insisting on strict Guyana-only endemism.
