Spice Bush
Spider Flower
Spike Gayfeather, Blazing Star
Spineless Yucca
Spiny Rush
Spreading Acacia
Spreading English Yew
Sprenger Asparagus
Squirrel's Foot Fern
St. Catherine's Lace
St. Vincent Rockrose
Stalked Aeonium
Star Jasmine, Maile Haole
Star Magnolia
Sticks on Fire Pencil Tree
Sticky Monkey Flower
Strawberry Guava
Strawberry Madrone
Strawberry Tree
Streamside Monkey Flower