Definition

Noun 1. A species of ash tree: Fraxinus quadrangulata is the scientific name for a specific type of ash tree, commonly known as the blue ash. It is characterized by its distinctive four-angled or square twigs, bluish-green foliage, and hard, durable brown wood. This tree is native to the central and southern United States.

Usage Notes

• This term is a proper noun, specifically a scientific binomial name (genus and species). It is always written in italics in formal botanical contexts.
• The first part, , is the genus name (capitalized). The second part, , is the specific epithet (not capitalized).
• In everyday language, the common name "blue ash" is more frequently used.

Examples of Usage

• Scientific/Formal Context:
  • The study focused on the drought resistance of Fraxinus quadrangulata compared to other native species.
  • You can identify Fraxinus quadrangulata by the squared stems on its young branches.
• General Context (using the common name):
  • The blue ash (Fraxinus quadrangulata) is known for its exceptionally hard wood.

Advanced Usage

• Taxonomic Classification: The term is used precisely within the hierarchical system of biological classification to uniquely identify this species.
  • In the family Oleaceae, Fraxinus quadrangulata is one of several North American ash species.

Variants and Related Words

• Blue ash: The standard common name for .
• : The genus name for all true ash trees.
• Ash tree: The general term for trees belonging to the genus .

Synonyms

• Blue ash

Different Meanings

• This term has only one specific meaning: it refers exclusively to this particular species of tree. It is not used idiomatically or in other contexts.

Noun

1. ash of central and southern United States with bluish-green foliage and hard brown wood