In this article we will discuss about:- 1. Habit and Habitat of Equisetum 2. Structure of Equisetum 3. Reproduction 4. Life Cycle. The plant body of Equisetum has an aerial part and an underground rhizome part Fig.
Alexandru M. Tomescu, Ignacio H. Escapa, Gar W. Background The origin of the Equisetum strobilus has long been debated and the fossil record has played an important role in these discussions. The paradigm underlying these debates has been the perspective of the shoot as node—internode alternation, with sporangiophores attached at nodes. However, fossils historically excluded from these discussions e. Cruciaetheca and Peltotheca exhibit reproductive morphologies that suggest attachment of sporangiophores along internodes, challenging traditional views.
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Horsetail Equisetum comprises of about 25 species. It belongs to order Equisetales. They are worldwide in distribution; however, no species have been recorded from Australia and New Zealand. They grow in a variety of habitats. Majority of the species are found in north temperate zone.