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

• alkalescent
• alkali
• alkali bee
• alkali grass
• alkali metal
• alkali poisoning
• alkalic
• alkalify
• alkalimetry
• alkaline
• alkaline earth
• alkaline metal
• alkaline-earth metal
• alkaline-loving
• alkalinise
• alkalinity
• alkalinize
• alkalinuria
• alkalise
• alkaliser
• alkalize
• alkalizer
• alkaloid
• alkaloidal
• alkalosis