Jisho

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Wikipedia definition
1. EquisetopsidaEquisetopsida, or Sphenopsida, is a class of plants with a fossil record going back to the Devonian. They are commonly known as horsetails. Living species typically grow in wet areas, with needle-like leaves radiating at regular intervals from a single vertical stem.
Read “Equisetopsida” on English Wikipedia
Read “トクサ綱” on Japanese Wikipedia
Read “Equisetopsida” on DBpedia

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