Definition

Noun 1. A species of white-flowered pyrethrum: A plant native to the Balkan region, characterized by white flowers and leaves that are pinnate (feather-like), white, and silky-hairy on their underside. It is the primary source of the natural insecticide pyrethrin.

Usage Examples

• Noun:
  • The insecticide was derived from Chrysanthemum cinerariifolium. (The natural insecticide was extracted from this specific plant species.)
  • Fields of Chrysanthemum cinerariifolium are cultivated for their pesticidal properties. (This plant is grown in agricultural fields specifically for producing insecticide.)

Advanced Usage

• Scientific Classification: In botanical contexts, this plant is sometimes classified under the genus , though its taxonomy has been revised. The term is used precisely to refer to this specific source species for pyrethrins.
  • The active compounds from Chrysanthemum cinerariifolium are used in organic farming. (The chemicals from this exact plant are utilized in certain agricultural practices.)

Variants and Related Words

• Pyrethrum: A common name for this plant and for the insecticide made from it.
• Tanacetum cinerariifolium: The accepted botanical name for this species in many modern classifications.
• Dalmatian pyrethrum: Another common name referencing its historical geographical association.

Synonyms

• Pyrethrum daisy: A descriptive synonym highlighting its flower type and use.
• Insecticide flower: A functional synonym describing its primary use.

Notes on Meaning

This term refers specifically to a botanical species with a highly specialized industrial and agricultural application. Its meaning is almost exclusively technical, relating to horticulture, botany, or the production of natural pesticides. It is not used in everyday conversation.

Noun

1. white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum