| Saint Peter and Saint Paul Archipelago(expression, feature, area, desert, ecoregion) |
| San Felix-San Ambrosio Islands temperate forest(expression, forest, broadleaf, mixed, temperate) |
| San Juan(expression, area, ecoregion, nicaragua) |
| San Lucan xeric scrub(expression, desert, ecoregion, shrubland) |
| Santa Cruz do Sul University Private Natural Heritage Reserve(expression, feature, area, ecoregion) |
| Santa Maria(expression, area, ecoregion, panama) |
| Santa Marta montane forest(expression, forest, moist, broadleaf, ecoregion) |
| Santa Marta paramo(expression, grassland, ecoregion, shrubland, montane) |
| Sechura desert(expression, desert, ecoregion, shrubland) |
| Semi-arid Pampas(expression, grassland, temperate, ecoregion, savanna) |
| Serra do Mar(expression, feature, area, ecoregion) |
| Serra do Mar coastal forest(expression, forest, moist, broadleaf, ecoregion) |
| Sierra Madre de Chiapas moist forest(expression, forest, feature, moist, area) |
| Sierra Madre de Oaxaca pine-oak forest(expression, forest, coniferous, ecoregion, tropical) |
| Sierra Madre del Sur pine-oak forest(expression, forest, coniferous, ecoregion, tropical) |
| Sierra de la Laguna dry forests(expression, forest, broadleaf, dry, ecoregion) |
| Sierra de la Laguna pine-oak forest(expression, forest, coniferous, ecoregion, tropical) |
| Sierra de los Tuxtlas(expression, forest, moist, broadleaf, ecoregion) |
| Sinaloan(noun, feature, area, ecoregion) |
| Sinaloan dry forests(expression, forest, broadleaf, dry, ecoregion) |