Science magazines
- Santa Cruz Island Bushmallow
- Santa Cruz Island Dudleya
- Santa Cruz Island Fringepod
- Santa Cruz Island Malacothrix
- Santa Cruz Island Rockcress
- Santa Cruz Long-toed Salamander
- Santa Cruz Tarplant
- Santa Monica Mountains Dudleya
- Santa Rosa Island Manzanita
- Schaus Swallowtail Butterfly
- Schiedea Haleakalensis
- Schiedea Helleri
- Schiedea Hookeri
- Schiedea Kaalae
- Schiedea Kauaiensis
- Schiedea Lydgatei
- Schiedea Membranacea
- Schiedea Nuttallii
- Schiedea Sarmentosa
- Schiedea Spergulina Var. Leiopoda