1. Perennial of the eastern United States having early solitary yellow flowers followed by late petalless flowers; so-called because ice crystals form on it during first frosts
   - frostweed, frost-weed, frostwort, Crocanthemum canadense

Type of: helianthemum, sun rose, sunrose

• genus Pholiota
• genus Pholis
• genus Pholistoma
• genus Phoradendron
• genus Photinia
• genus Photoblepharon
• genus Phoxinus
• genus Phragmipedium
• genus Phragmites
• genus Phrynosoma
• genus Phthirius
• genus Phthirus
• genus Phthorimaea
• genus Phyllitis
• genus Phyllium
• genus Phyllocladus
• pollute
• polluted
• polluter
• pollution
• Pollux
• polly
• Pollyanna
• pollyannaish
• pollyfish