hydrilla

Thân thiện

Hydrilla clogs the clear water of a freshwater pond.

Definition

Noun: 1. A submerged aquatic plant: Hydrilla is a type of freshwater plant that grows entirely underwater. It is characterized by long, slender stems with whorls (circles) of small, narrow, lance-shaped leaves along their length. It produces small, solitary flowers. 2. An invasive species: Originally from the Old World (parts of Asia, Africa, and Australia), hydrilla has been introduced to other regions like the southern United States. It grows very rapidly and densely, forming thick mats that can clog waterways, impede boat traffic, and disrupt native ecosystems.

Examples of Usage

• The rapid spread of hydrilla in the lake has become a major concern for environmental managers.
• Hydrilla is often mistaken for other native aquatic plants like elodea.
• One identifying feature of hydrilla is the small, white, tuber-like structures (turions) it forms on its stems.

Advanced Usage

• "Hydrilla verticillata": This is the full scientific name for the species. Using the scientific name specifies the exact organism being discussed, especially in ecological or botanical contexts.
  • The study focused on the growth rate of Hydrilla verticillata under different light conditions.

Variants and Related Words

• Aquatic weed: A common descriptive term for hydrilla due to its invasive and problematic nature in non-native habitats.
• Invasive species: The ecological category to which hydrilla belongs in places like Florida.

Synonyms

• Waterweed (a general term for fast-growing aquatic plants that can become problematic).
• Submersed aquatic plant (a technical descriptor of its growth form).

Note: There are no specific idioms or phrasal verbs associated with the noun "hydrilla."

Học thuật

Noun

1. submersed plant with whorled lanceolate leaves and solitary axillary flowers; Old World plant naturalized in southern United States and clogging Florida's waterways

Từ đồng nghĩa

• hydrilla verticillata