Sphenopsida
Sphenopsida is an outdated and informal term that was historically used to refer to a class of vascular plants, primarily focusing on certain groups of seedless vascular plants. The term is derived from Greek, meaning "wedge-shaped" or "shaft-like," although it is rarely used in modern taxonomy. Today, Sphenopsida is generally considered synonymous with or a subset of Lycopodiopsida, a formal class within the division Lycopodiophyta.
Lycopodiophyta, commonly known as club mosses and their relatives, comprises small, vascular, spore-producing plants that typically
In modern botanical classification, the group formerly referred to as Sphenopsida is classified under the class
Because "Sphenopsida" is outdated and not recognized in current taxonomic standards, its use is discouraged in
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