horsetail
/ˈhɔːsteɪl/noun
1- 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。
1.1
- 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。