order Polygonales
Definition
Noun: 1. A taxonomic order of flowering plants: "Order Polygonales" is a botanical classification term. It refers to a specific order of dicotyledonous plants, historically recognized in some taxonomic systems. This order is defined as being coextensive with (meaning it contains the same members as) the plant family Polygonaceae.
Usage Notes
- This is a highly specialized term used almost exclusively in scientific contexts, particularly in botany, taxonomy, and historical plant classification literature.
- In modern taxonomic systems (e.g., the APG system), the family Polygonaceae is placed within the order Caryophyllales. Therefore, the term "Order Polygonales" is considered largely historical or traditional in current scientific discourse.
Examples
- Scientific Context:
- In older classification schemes, the buckwheat family was placed in the order Polygonales.
- The taxon Polygonales was characterized by plants with ochreate stipules.
Advanced Usage
- Historical Taxonomy: The term is primarily encountered when studying the history of plant classification or in older botanical texts. It serves as an example of how plant families were once grouped into orders before the widespread use of molecular phylogenetic data.
Variants and Related Words
- Polygonaceae (n): The plant family that constitutes the order Polygonales. Commonly known as the buckwheat, knotweed, or smartweed family. It includes plants like rhubarb, buckwheat, and sorrel.
- Caryophyllales (n): The modern botanical order that now encompasses the Polygonaceae family, among others like cacti and carnations.
Synonyms
- (There are no common synonyms for this precise scientific term. In a descriptive sense, one might refer to it as "the buckwheat order," but this is not a formal synonym.)
Related Phrases
- Coextensive with: A phrase often used in taxonomy to indicate that two taxonomic groups (e.g., an order and a family) contain exactly the same set of species or members.
Noun
-
coextensive with the family Polygonaceae,
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