genus dryas

Thân thiện

A small white flower of the genus Dryas grows on a rocky alpine slope.

Definition

Proper noun 1. A genus of dwarf evergreen shrubs in the family Rosaceae: This term refers to a small botanical genus of low-growing, woody perennial plants. The genus is characterized by its simple, often leathery leaves and solitary, typically white or yellow, eight-petaled flowers resembling those of the rose family. Members of this genus are commonly known as mountain avens and are native to arctic and alpine regions.

Usage Examples

• Proper noun:
  • The botanist specialized in the study of genus Dryas.
  • Several species within genus Dryas are important pioneer plants in cold environments.
  • The classification of genus Dryas has been clarified through genetic analysis.

Advanced Usage

• In paleoclimatology: The term "Dryas" (capitalized, without "genus") is used to name distinct cold climatic periods at the end of the last ice age (e.g., Younger Dryas, Older Dryas). This usage originates from the abundance of pollen from plants of the found in sediment layers from those times, indicating a cold, tundra-like climate.
  • The Younger Dryas period was a significant return to glacial conditions.

Variants and Related Words

• Dryas (noun): The abbreviated form commonly used to refer to the genus, especially in scientific and botanical contexts.
  • Dryas octopetala is a widespread species.
• Mountain avens (noun): The common name for plants belonging to this genus.
  • The white flowers of the mountain avens are a common sight on the alpine tundra.

Synonyms

• Mountain avens (common name)

Related Terms (Scientific Context)

• Rosaceae (noun): The rose family, the plant family to which belongs.
• Alpine (adjective): Relating to high mountains, describing the typical habitat of these plants.
• Tundra (noun): A type of biome where species from this genus are often found.

Học thuật

Noun

1. mountain avens

Từ đồng nghĩa

• Dryas
• genus Dryas