Cephalanthus occidentalis

Characteristics
Dicots
Rubiaceae
Cephalanthus
Cephalanthus occidentalis L.
Buttonbush
shrub
6
**
Native AGCP (OBL), EMP (OBL) (NWPL) TN[SNR] KY[S5] (State Rank) G5 (Global Rank)
Armaments
No
Base Flower Color
White
Duration
Perennial
Fruit Dehiscence
No
Fruit Type
Achene; Schizocarp
Fruit Wet/Dry
Dry
General Ecology
Aquatic; Terrestrial; Mudflat/Wet Woods
Growth Habit
shrub
Leaf Arrangement
opposite; whorled
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
No
Leaf Petiole Type
petiolate
Leaf Type
broadleaf
Leaf Venation
pinnate
Leaflet Margins
entire
Leaflet Number
0
Moisture Requirements
Mesic; Hydric; Inundated
Natural Area Presence
PCSF; FCFSP; ObedWSR; NCCGSNA; BISO; LULA; LRC; LGS; DRU; GILES; UCR; GRSM; SGSNA; WOLF; RCSP; TRG; LC; FG; BE; WOCG-BISO
Ovary Position
Inferior
Overall Flower Symmetry
Actinomorphic
Parent Rock
Calcareous; Chert; Limestone
Perianth Present
Yes
Pistil Number
1
Soil Composition
Mineral
Soil pH
Alkaline; Circumneutral
Stamen Number
4
Unconsolidated Rock
Yes
Unconsolidated Size Class
Boulder; Cobble; Gravel
Woody Herbaceous
Woody
View details of Herbarium specimens
** Not applicable or data not available.
Classification
Rubiales
Cephalanthus
Cephalanthus occidentalis L. - Buttonbush
Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display its name.

Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

Ecoregions
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim
  • Interior River Valleys and Hills
    • Shawnee / Caseyville Hills
  • Mississippi Alluvial Plain
  • Mississippi Valley Loess Plains
Synonyms
Specimens and Distribution

Click on an Accession Number to view additional details about the specimen.

Range of years during which specimens were collected:

Plant Photos
Cephalanthus occidentalis - 4
Cephalanthus occidentalis - Alaina Krakowiak View Full Size
Cephalanthus occidentalis - 4
Cephalanthus occidentalis - Alaina Krakowiak View Full Size
Cephalanthus occidentalis - 13
Cephalanthus occidentalis - Dwayne Estes View Full Size
Cephalanthus occidentalis - 13
Cephalanthus occidentalis - Dwayne Estes View Full Size
Cephalanthus occidentalis - 13
Cephalanthus occidentalis - Dwayne Estes View Full Size
Cephalanthus occidentalis - 13
Cephalanthus occidentalis - Dwayne Estes View Full Size
Cephalanthus occidentalis - 13
Cephalanthus occidentalis - Dwayne Estes View Full Size
Cephalanthus occidentalis - 2
Cephalanthus occidentalis - Joey Shaw View Full Size
Cephalanthus occidentalis - 2
Cephalanthus occidentalis - Joey Shaw View Full Size
Cephalanthus occidentalis - 2
Cephalanthus occidentalis - Joey Shaw View Full Size
Cephalanthus occidentalis - 2
Cephalanthus occidentalis - Joey Shaw View Full Size
Cephalanthus occidentalis - 2
Cephalanthus occidentalis - Joey Shaw View Full Size
Cephalanthus occidentalis - 20
Cephalanthus occidentalis - Milo Pyne View Full Size
Cephalanthus occidentalis - 20
Cephalanthus occidentalis - Milo Pyne View Full Size
Cephalanthus occidentalis - 18
Cephalanthus occidentalis - Sunny Fleming View Full Size
Cephalanthus occidentalis - 21
Cephalanthus occidentalis - Tara Littlefield View Full Size
Cephalanthus occidentalis - 21
Cephalanthus occidentalis - Tara Littlefield View Full Size
Cephalanthus occidentalis - 21
Cephalanthus occidentalis - Tara Littlefield View Full Size
Cephalanthus occidentalis - 19
Cephalanthus occidentalis - Theo Witsell View Full Size
Cephalanthus occidentalis - 19
Cephalanthus occidentalis - Theo Witsell View Full Size
Cephalanthus occidentalis - 19
Cephalanthus occidentalis - Theo Witsell View Full Size
Cephalanthus occidentalis - 2
Cephalanthus occidentalis - Joey Shaw View Full Size
Cephalanthus occidentalis - 2
Cephalanthus occidentalis - Joey Shaw View Full Size