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单词 prickly shield fern
释义

Definition of prickly shield fern in English:

prickly shield fern

noun
  • Any of several shield ferns of the genus Polystichum; especially P. aculeatum of Eurasia and North Africa, which has leathery fronds and distinctive bristle-toothed pinnules.

Origin

Early 19th century; earliest use found in James Edward Smith (1759–1828), botanist.

Definition of prickly shield fern in US English:

prickly shield fern

noun
  • Any of several shield ferns of the genus Polystichum; especially P. aculeatum of Eurasia and North Africa, which has leathery fronds and distinctive bristle-toothed pinnules.

Origin

Early 19th century; earliest use found in James Edward Smith (1759–1828), botanist.

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