Definition

Proper noun 1. A taxonomic order of flowering plants: In some botanical classification systems, 'Rosales' is the name of an order of dicotyledonous plants. This order traditionally includes families such as Rosaceae (roses, apples) and Ulmaceae (elms). The provided reference context specifies that in some classifications, the family Leguminosae (or Fabaceae, the legume family) is not included within this order.

Usage Notes

• 'Rosales' is a specialized scientific term used primarily in botany, taxonomy, and biology.
• It is always capitalized as it is a proper noun referring to a specific taxonomic rank (an order).
• The composition of the order Rosales varies between different classification systems. Modern phylogenetic systems often include families like Rosaceae, Ulmaceae, Cannabaceae (hemp, hops), and others, while typically excluding Leguminosae, which is placed in its own order, Fabales.

Examples

• The rose family, Rosaceae, is one of the most well-known members of the order Rosales.
• According to the Angiosperm Phylogeny Group system, the order Rosales contains families such as Rosaceae, Ulmaceae, and Moraceae.
• The reference states that in some classifications, Rosales does not include Leguminosae.

Advanced Usage

• The classification of plant orders like Rosales is subject to change as genetic research provides new insights into evolutionary relationships.
• In scientific writing, the order name is often used in its Latin form and may be italicized: .

Variants and Related Words

• Rosaceous (adj): Of, relating to, or characteristic of the rose family (Rosaceae) or, by extension, the order Rosales.
  • The apple tree produces a rosaceous fruit.
• Rosidae (noun): A subclass of flowering plants that, in some older classification systems, contained the order Rosales.

Synonyms

• There are no direct common-language synonyms for this precise taxonomic term. In general scientific context, it could be paraphrased as "the rose order" or "the taxonomic order containing roses," though these are descriptions, not synonyms.

Related Phrases

• Taxonomic order: The rank in biological classification to which 'Rosales' belongs.
• Type family: In taxonomy, Rosaceae is often considered the type family for the order Rosales.

Notes on Different Meanings

• 'Rosales' has no other distinct meanings in general English. It is exclusively a scientific term from biological taxonomy. It should not be confused with the Spanish surname or place name 'Rosales'.

Noun

1. in some classifications this category does not include Leguminosae