common alder

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common alder

A common alder grows beside a clear stream.

Definition
  1. Noun:
    • A medium-sized tree species: "Common alder" refers specifically to Alnus glutinosa, a deciduous tree native to Europe, southwest Asia, and northern Africa. It is characterized by its dark, fissured bark and its preference for moist or wet habitats like riverbanks.
    • Botanical description: The tree produces woody, cone-like fruiting structures called catkins. Its leaves are broadly rounded, often notched at the tip, and have a distinctive hairy texture on the underside.
Usage Examples
  • Noun:
    • The common alder is often planted to stabilize riverbanks and prevent erosion.
    • We identified the tree by its rounded leaves and the woody catkins; it was a common alder.
Advanced Usage
  • Ecological role: The common alder plays a crucial role in wetland ecosystems. Its roots host nitrogen-fixing bacteria, which enrich the soil.
    • The common alder improves soil fertility through its symbiotic relationship with bacteria.
Variants and Related Words
  • Black alder: Another common name for , referring to the dark color of its bark.
  • European alder: A name emphasizing its primary geographical range.
  • Alder (Alnus): The broader genus name, which includes other species like the red alder () or grey alder ().
Synonyms
  • Alnus glutinosa: The formal, scientific binomial name for the common alder.
  • Black alder: A direct synonym in common usage.
Related Phrases
  • Alder carr: A type of wetland woodland dominated by alder trees, often common alder.
    • The nature reserve contains a valuable alder carr habitat.
common alder

A common alder grows beside a clear stream.

Noun
  1. medium-sized tree with brown-black bark and woody fruiting catkins; leaves are hairy beneath

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