1. Massive tropical tree with deep ridges on its massive trunk and bearing large pods of seeds covered with silky floss; source of the silky kapok fibre
   - kapok, ceiba tree, silk-cotton tree, white silk-cotton tree, God tree, Ceiba pentandra

Type of: angiospermous tree, flowering tree

• genus Sarcodes
• genus Sarcophaga
• genus Sarcophilus
• genus Sarcoptes
• genus Sarcorhamphus
• genus Sarcostemma
• genus Sarda
• genus Sardina
• genus Sardinia
• genus Sardinops
• genus Sargassum
• genus Sarracenia
• genus Sassafras
• genus Satureia
• genus Satureja
• genus Saturnia
• genus Sauromalus
• genus Saurosuchus
• genus Saururus
• genus Saussurea
• genus Saxegothea
• genus Saxicola
• genus Saxifraga
• genus Sayornis
• genus Scabiosa