Subgenus
Equisetum
Equisetum arvense. Photo: (c) Griff, some rights reserved (CC BY-NC)
Equisetum (/ˌɛkwɪˈsiːtəm/; horsetail, snake grass, puzzlegrass) is the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds.
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