tansy ragwort
Noun: - A widespread European weed (Senecio jacobaea) characterized by clusters of yellow, daisy-like flowers. It is often considered an invasive or troublesome plant and can be poisonous to livestock, particularly cattle, if ingested in large amounts.
The term "tansy ragwort" is used specifically to identify this particular plant species. It functions as a compound noun where "tansy" refers to its resemblance to plants in the Tanacetum genus and "ragwort" is a common name for various Senecio species. It is used in botanical, agricultural, and ecological contexts.
- Noun:
- The pasture was overrun with tansy ragwort, posing a risk to the grazing herd.
- Eradicating tansy ragwort is a priority for many conservationists.
- The bright yellow flowers of tansy ragwort are deceptively attractive.
- The plant is often discussed in the context of biological control, where specific insects are introduced to manage its spread.
- In regulatory contexts, it may be listed as a noxious weed, requiring landowners to control it.
- Common ragwort: A frequently used synonym for the same species.
- Stinking willie: Another common name for in some regions.
- Ragwort: A broader term that can refer to other species within the genus.
- Benweed (regional, chiefly Scottish)
- Staggerwort (references its toxic effect on livestock)
The primary meaning is the specific plant species. Its notoriety stems from two key characteristics: 1. Its invasive nature as a weed that outcompetes native vegetation. 2. Its toxicity, as it contains pyrrolizidine alkaloids which cause liver damage in cattle and horses.
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widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
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