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, Helianthemum canadense

Type of: helianthemum, sun rose, sunrose

• interstitial
• interstitial cell-stimulating hormone
• interstitial fluid
• interstitial plasma cell pneumonia
• interstitial pneumonia
• interstitial tissue
• interstratify
• intertextuality
• intertidal
• intertribal
• intertrigo
• intertropical
• intertwine
• intertwist
• interurban
• interval
• intervale
• intervene
• intervener
• intervening
• intervenor
• intervention
• interventionism
• interventionist
• interventricular foramen