Scabious,

Sensitive Plant,

Snow Ball,

Snow Drop,

Sorrel, Wild,
Speed well,

Star of Bethlehem,
St. John's Wort,
Sumach, Venice,
Sun-flower, dwarf,
Sun-flower, tall,
Sweet-brier,
Sweet-William,
Syringa Carolina,
Thistle, Common,
Thorn-apple,
Thyme,

Tuberose,