| Salsola |
Salsola genistoides
| Salvia |
Salvia argentea
Salvia candelabrum
Salvia lavandulifolia subsp. vellerea
Salvia microphylla
Salvia sclarea
| Santolina |
Santolina chamaecyparissus subsp. tomentosa
Santolina ericoides
Santolina rosmarinifolia
Santolina viscosa
| Saponaria |
Saponaria officinalis
| Saxifraga |
Saxifraga latepetiolata
Saxifraga oppositifolia subsp. oppositifolia
| Schoenus |
Schoenus nigricans
| Scrophularia |
Scrophularia arguta
Scrophularia tanacetifolia
| Sempervivum |
Sempervivum minutum
| Senecio |
Senecio alboranicus
Senecio quinqueradiatus
| Sesamum |
Sesamum indicum
| Seseli |
Seseli tortuosum
| Setaria |
Setaria viridis
| Sideritis |
Sideritis arborescens
Sideritis glacialis subsp. vestita
Sideritis hirsuta subsp. hirsuta
Sideritis incana
| Silene |
Silene boryi
Silene colorata
Silene decipiens
Silene fuscata
Silene germana
Silene inaperta subsp. inaperta
Silene latifolia
Silene mariana
Silene mellifera
Silene nocturna
Silene nutans subsp. nutans
Silene ramosissima
Silene rupestris
Silene saxifraga
Silene sclerocarpa
Silene tridentata
Silene tomentosa
Silene vulgaris subsp. vulgaris
| Scrophularia |
Scrophularia canina subsp. canina
| Solanum |
Solanum elaeagnifolium
Solanum lycopersicum "Huevo de toro"
Solanum nigrum
| Sorbus |
Sorbus aucuparia
Sorbus hybrida
Sorbus torminalis
| Staehelina |
Staehelina dubia
| Staphisagria |
Staphisagria macrosperma
| Symphoricarpos |
Symphoricarpos albus
