Definition

Noun: 1. A taxonomic order of monocotyledonous herbs: "Order Xyridales" is a botanical term referring to a specific order of flowering plants within the monocot class. These plants are primarily herbaceous (non-woody) and include families such as the Xyridaceae (yellow-eyed grass family).

Usage

• The classification is used in scientific botany and taxonomy to group related families of monocot herbs.
• It is a formal, technical term found in academic texts, botanical guides, and scientific discussions about plant systematics.

Examples

• Noun:
  • The plant was reclassified and placed within the order Xyridales.
  • Botanists study the evolutionary relationships among families in the order Xyridales.

Advanced Usage

• "to belong to order Xyridales": to be taxonomically classified within this specific order.
  • Several wetland herb species belong to order Xyridales.

Variants and Related Words

• Xyridales (n): The common abbreviated form of the full term "order Xyridales."
• Monocotyledon (n): A major class of flowering plants to which this order belongs, characterized by having a single seed leaf.
• Herbaceous (adj): Describing plants with non-woody stems, a key characteristic of plants in this order.

Synonyms

• Commelinales (n): In some modern taxonomic systems (e.g., APG IV), the families formerly placed in Xyridales are now included within the expanded order Commelinales. This reflects updated phylogenetic understanding.

Important Note

In contemporary botanical taxonomy (following the Angiosperm Phylogeny Group IV system), the traditional order Xyridales is often not recognized as a separate order. Its constituent families are typically included within the larger order Commelinales. Therefore, "order Xyridales" is a historical or traditional classification that may still be encountered in older literature.

Noun

1. an order of monocotyledonous herbs