butterweed

• Nom désignant plusieurs plantes herbacées à fleurs jaunes du genre Packera, souvent incluses dans le genre Senecio, notamment le séneçon américain.

A noun referring to any of several yellow-flowered plants of the genus Packera, often placed in genus Senecio, including American ragwort.

1. American ragwortC2formalamericanscientific

   A yellow-flowered plant of the genus Packera, often found in North America.

   séneçon de Roche (Packera)

   • Butterweed blooms in early spring across the southern United States.
   • The field was covered in butterweed, creating a bright yellow carpet.
   • Farmers often consider butterweed a weed in pastures.

2. Yellow-flowered plantC2formalscientific

   Any of several plants in the genus Packera (formerly placed in Senecio) with yellow flowers.

   Séneçon (plantes à fleurs jaunes du genre Packera)

   • Butterweed is sometimes confused with goldenrod due to its similar color.
   • The plant known as butterweed thrives in moist, disturbed soils.
   • Botanists classify butterweed within the aster family.

   Synonymesgroundselragwort