Strawberry Clover 
Streaked Rattlepod 
Strongylodon madagascariensis 
Sturts Desert Pea 
Subterranean clover 
Sulla glomerata 
Sulla spinosissima 
Sunshine wattle 
Sweet acacia 
Sweet Clover 
Sweet pea 
Sweet Wattle 
Sword bossiaea 
Tall Melilot 
Tamarind 
Tattered Medick 
Tephrosia apollinea 
Tephrosia nubica 
Texas Bluebonnet 
Texas Mountain Laurel 
Thermopsis dolichocarpa 
Thin-leaf wattle 
Three-nerved bush-pea 
Tigers claw