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

• Cassia augustifolia
• Cassia auriculata
• cassia bark
• Cassia fasciculata
• Cassia fistula
• Cassia grandis
• Cassia javonica
• Cassia marginata
• Cassia marilandica
• Cassia occidentalis
• Cassia roxburghii
• Cassia tora
• cassia-bark tree
• cassie
• cassimere
• Cassin's kingbird
• cassino
• Cassiope
• Cassiope mertensiana
• Cassiopeia
• Cassirer
• cassiri
• cassis
• Cassite
• cassiterite