Definition

1. Noun:
   • A North American annual plant widely cultivated for its distinctive flowers, which typically have yellow petals with centers ranging from purple-red to brownish. In some botanical classification systems, it is placed within a subgenus called Calliopsis.

Usage

• The term is used specifically as the scientific or common name for this particular species of flowering plant. It is primarily employed in botanical, horticultural, and gardening contexts.

Examples

• Noun:
  • The garden's border was brightened by a row of Coreopsis tinctoria.
  • Botanists study Coreopsis tinctoria for its drought tolerance and vibrant blooms.

Advanced Usage

• In taxonomic discussions, the full binomial name is used to precisely identify the species and distinguish it from other plants in the genus.
  • The specimen was definitively identified as Coreopsis tinctoria based on its floral morphology.

Variants and Related Words

• Calliopsis: A common name sometimes used for plants in the genus, particularly those formerly or alternatively classified in the subgenus . This is not a direct synonym but a related taxonomic reference.
• Tickseed: A general common name for plants in the genus, referring to the appearance of their seeds.

Synonyms

• Plains coreopsis: A widely used common name for this species.
• Golden tickseed: Another common name, emphasizing the flower's color.
• Calliopsis (in historical or informal classification): May be used to refer to this species.

Related Phrases

• Dye plant: has been used historically to produce dyes, which is referenced in its species epithet "tinctoria" (meaning "used for dyeing").
  • As a dye plant, Coreopsis tinctoria yields colors from yellow to reddish-brown.

Noun

1. North American annual widely cultivated for its yellow flowers with purple-red to brownish centers; in some classifications placed in a subgenus Calliopsis