mouse-ear hawkweed
Học thuậtThân thiện
Definition
Noun: 1. A perennial herbaceous plant (Pilosella officinarum, formerly Hieracium pilosella) native to Europe, characterized by its soft, hairy, mouse-ear shaped leaves and typically producing yellow, dandelion-like flower heads on leafless stems.
Usage Examples
- Noun:
- The meadow was dotted with the bright yellow flowers of mouse-ear hawkweed.
- Botanists study mouse-ear hawkweed for its invasive potential in some regions.
- You can identify mouse-ear hawkweed by its distinctive rosette of hairy, oblong leaves.
Advanced Usage
- In Botanical Context: The term is used precisely to distinguish this specific species from other, similar-looking hawkweeds within the large or genera. Its growth habit (forming stolons or runners) and leaf morphology are key identifiers.
- In Ecological Context: Often discussed as an invasive species in areas like North America, where it can form dense mats that outcompete native vegetation.
Variants and Related Words
- Scientific Name: . The older synonym, , may still be encountered.
- Common Names: "Mouse-ear" is the primary descriptor. It is sometimes simply called "hawkweed," though this is a broad term for many species.
- Related Plant: King Devil Hawkweed () is a closely related, often more invasive species.
Synonyms
- Botanical Synonym: (less current).
- Descriptive Terms: hairy hawkweed, yellow-flowered hawkweed.
Notes on Meaning
This term refers exclusively to a specific plant species. It is a compound noun where "mouse-ear" describes the shape and texture of the leaf, and "hawkweed" identifies the plant's genus. It does not have idiomatic or phrasal verb uses.
Noun
- European hawkweed having soft hairy leaves; sometimes placed in genus Hieracium