Asteridae

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Definition

Noun: 1. A taxonomic subclass of plants: Asteridae is a botanical classification for a large group of mostly dicotyledonous flowering plants (angiosperms). These plants are primarily characterized by having sympetalous corollas (fused petals) and typically two fused carpels. This group encompasses many familiar families of herbs, shrubs, and some trees.

Usage
  • Scientific Classification: The term is used primarily in the context of botanical taxonomy to categorize and describe a major lineage of plants.
Advanced Usage
  • Historical Taxonomic Rank: In some older, influential classification systems (such as the Cronquist system), Asteridae was recognized as a formal subclass within the class Magnoliopsida (dicots). Its composition and status have been revised in modern phylogenetic systems (like the APG system).
Variants and Related Words
  • Asterid (noun/adjective): A member of the asterid clade; pertaining to the asterids. This is the more commonly used term in modern cladistics.
Synonyms
  • Asterid clade: (In modern phylogenetic contexts) This refers to the same broad evolutionary lineage but without the formal rank of "subclass."
Notes on Different Meanings
  • The meaning of "Asteridae" is highly specific to botanical science. It does not have general English usage or meanings outside of plant taxonomy. Its definition is tied to particular historical classification systems.
Noun
  1. a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels; contains 43 families including Campanulales; Solanaceae; Scrophulariaceae; Labiatae; Verbenaceae; Rubiaceae; Compositae; sometimes classified as a superorder

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