horsetail
horsetailnoun- a plant with a hollow jointed stem which bears whorls of narrow leaves, producing spores in cones at the tips of the shoots
木贼
- Genus Equisetum, the only surviving genus of the family Equisetaceae and class Sphenopsida, division Pteridophyta
木贼属,木贼科唯一幸存的属,楔叶纲,蕨类植物门
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