WHERE’S WILDLIFE • WILDFLOWER FIELD GUIDE

Buttonbush

Cephalanthus occidentalis

Pronounced (approximate): sef-ah-LAN-thus ock-sih-den-TAH-liss

Tiny white flowers form distinctive spherical heads. Long projecting styles give each flower head a pincushion appearance.

Buttonbush (Cephalanthus occidentalis): white flower head closeup. Tap the photo to open the gallery.

NATIVE • NORTH AMERICA

At a glance

Family Rubiaceae
Life cycle Deciduous shrub
Blooms Summer
Height Usually 5–12 feet
Habitat Pond margins, swamps, streambanks, and other wet ground

Common names
Buttonbush · Common Buttonbush

Bloom timing and height vary with location. Native status refers to North America; see the regional range below.

Sightings map

Explore reported observations. Sightings are not a complete range map.

How to recognize it

Key identification clues

  • Tiny white flowers form distinctive spherical heads.
  • Long projecting styles give each flower head a pincushion appearance.
  • Broad leaves occur in opposite pairs or whorls.

Where and when to look

Pond margins, swamps, streambanks, and other wet ground. Flowering season: summer.

Compare similar plants

Look for the rounded flower heads on a woody shrub growing in wet habitat.

A closer look

Flower details

Tiny white flowers form distinctive spherical heads.

Leaves & stems

Broad leaves occur in opposite pairs or whorls.

Whole plant & habitat

Look for deciduous shrub growth in pond margins, swamps, streambanks, and other wet ground. Pair close views with a photograph of the whole plant.

Field photographs

15 field photographs. Select a photograph to enlarge it; use Load more photos to see the rest.

Range & sightings

Native across much of eastern and southern North America, with western populations, and south into Central America and Cuba.

Reported U.S. native distribution
AL, AR, AZ, CA, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV

State records describe documented distribution, not presence in every county. The observation map shows reported sightings and may include cultivated plants.

Observation maps show submitted records, not every place the plant occurs. Follow local access rules when visiting a site.

Keep learning

Practice recognizing Buttonbush in the flower quiz, or compare it with other plants in the guide.

Sources & further reading

Field photographs: Where’s Wildlife.

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