Part 51

Purslane family

Quassia family

Rattan vine

Red bud

Red bud. Judas tree

Red clover

Red oak

Retama

Roemer's sage

Roman wormwood

Rose

Rose family

Rose of sharon. Shrubby althaea

Round-flowered catsclaw

Rue family

Salt cedar

Sensitive briar

Silk weed

Silver berry

Sneeze weed. Bitter weed

Soapberry. Wild china

Soapberry family

Sonora croton

Sorgum

Spanish apple

Spatulate-leafed fog-fruit

Spiderwort family

Spring sida