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Connecticut Plants
Buttonbush
Cephalanthus occidentalis L.
  • Family: bedstraw (Rubiaceae)
  • Habitat: swamps, edges of streams and ponds
  • Height: 3-10 feet
  • Flower size: 1/3 inch flowers in spherical clusters 1-1/2 inches across
  • Flower color: white
  • Flowering time: June to August
  • Origin: native
Cephalanthus occidentalis L.

A flowerhead in bloom and another in bud. Photographed in Bucks County, Pennsylvania in early July.

Cephalanthus occidentalis L.
Cephalanthus occidentalis L.
Cephalanthus occidentalis L.
Cephalanthus occidentalis L.

A buttonbush twig. Note that the leaves may be opposite or in whorls of three.