hornwort
1. [ noun ] (botany) any aquatic plant of the genus Ceratophyllum; forms submerged masses in ponds and slow-flowing streams
Related terms: aquatic_plant Ceratophyllum
2. [ noun ] (biology,botany) liverworts with slender hornlike 2-valved capsules
Related terms: liverwort Anthocerotales
Similar spelling:   Horner
  Hoerner