What is another word for Class Sphenopsida?
Pronunciation: [klˈas sfˈɛnəpsˌɪdə] (IPA) 
Class Sphenopsida is a group of vascular plants that are characterized by their hollow, jointed stems, whorls of leaves and sporangia that are borne on the stem. This class is commonly known as horsetails, and it comprises only a few living species. There are several synonyms used to refer to Class Sphenopsida, including Equisetopsida, Equisetidae, and Arthrophyta. These synonyms are frequently used in the botanical literature and are interchangeable with the term "horsetails." While there may be slight differences in the taxonomic classification of these plants, they all refer to the same group of ancient vascular plants that have a unique morphology and are ecologically important in wetland ecosystems.
