1. Large tree of Australasia
   - red beech, brown oak, booyong, crow's foot, stave wood, silky elm, Heritiera trifoliolata

Type of: angiospermous tree, flowering tree

• genus Sophora
• genus Sorbus
• genus Sorex
• genus Sorghum
• genus Spadella
• genus Spalax
• genus Sparaxis
• genus Sparganium
• genus Sparmannia
• genus Spartina
• genus Spartium
• genus Spathiphyllum
• genus Spergula
• genus Spergularia
• genus Spermophilus
• genus Sphacele
• genus Sphacelotheca
• genus Sphaeralcea
• genus Sphaerocarpos
• genus Sphaerocarpus
• genus Sphagnum
• genus Sphecius
• genus Sphecotheres
• genus Spheniscus
• genus Sphenodon