Sacajawea Bitter Root          

Sand Springbeauty          

Sawtooth Lewisia          

Scammans Springbeauty          

Seaside Pussypaws          

Serpentine Springbeauty          

Shortsepal Lewisia          

Shrubby Purslane          

Siberian Springbeauty          

Sierra Lewisia          

Sierra Springbeauty          

Silkcotton Purslane          

Siskiyou Lewisia          

Smalls Purslane          

Spiny Fameflower          

Spreading Minerslettuce          

Springbeauty          

Stebbins Lewisia          

Streambank Springbeauty          

Sunbright