hornwort

• 名词，指金鱼藻属（Ceratophyllum）的水生植物，在池塘和缓流溪水中形成水下群落；也指一种角苔类苔藓，具有细长的角状孢蒴。

A noun referring to either an aquatic plant of the genus Ceratophyllum that forms submerged masses in ponds and slow-flowing streams, or a type of liverwort with slender hornlike capsules.

1. C1formalscientific

   Any submerged aquatic plant of the genus Ceratophyllum, which forms dense masses in ponds and slow-moving streams.

   金鱼藻

   • Hornwort provides excellent cover for fish in garden ponds.
   • The lake was choked with hornwort near the shore.
   • Aquarists often use hornwort to oxygenate the water.

2. LiverwortC1formalscientific

   A type of bryophyte (non-vascular plant) with slender, horn-like capsules, belonging to the class Anthocerotopsida.

   角苔

   • Hornworts are often found growing on damp soil or rocks.
   • The hornwort's sporophyte has a distinctive elongated shape.
   • Botanists study hornworts to understand early plant evolution.