bracken

• 名词，指生长茂密、粗大且常被视为杂草的蕨类植物；也指原产于东南亚、不耐寒的蕨类植物。

A noun referring to a large, coarse fern that grows in dense patches, often considered a weed; also a fern of southeastern Asia that is not hardy in cold temperate regions.

1. Large coarse fernB2formal

   A tall, widespread fern that grows in many regions and is often considered a weed due to its rapid spread.

   蕨菜

   • Bracken covers large areas of the hillside in summer.
   • The hikers pushed through a thick patch of bracken.
   • Farmers often struggle to control bracken in their fields.

   同义词brake

2. Southeastern Asian fernC1formal

   A specific type of fern native to southeastern Asia that is not tolerant of cold climates.

   东南亚蕨

   • This species of bracken thrives in the humid forests of Southeast Asia.
   • Unlike its cosmopolitan relative, this bracken cannot survive frost.
   • Botanists study the limited distribution of this Asian bracken.