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

• caryophyllaceous
• caryophyllaceous plant
• Caryophyllales
• Caryophyllidae
• caryophylloid dicot family
• caryophylloid dicot genus
• caryopsis
• Caryota
• Caryota urens
• casaba
• casaba melon
• Casablanca
• Casals
• Casanova
• Casanova de Seingalt
• casava
• casbah
• cascabel
• cascade
• cascade down
• cascade everlasting
• cascade liquefier
• Cascade Mountains
• cascade penstemon
• Cascade Range