SelecTree: Tree Detail
Photo Locations: UC Davis Arboretum - Davis, CA, LSU Hilltop Arboretum - Baton Rouge, LA, Santa Barbara Botanic Garden - Santa Barbara, CA, River Banks Botanical Garden - Columbia, SC, Rancho Santa Ana Botanic Gardens - Claremont, CA and San Antonio Botanic Garden - San Antonio, TX
Utility friendly tree.
A native riparian species found in foothill and inland valley areas. Fruit attracts over 25 species of water-fowl. Flowers are favorite of butterflies. Bark used as a laxitive and for skin diseases.
Has fragrant Flower and Fruit.
Native to Western U.S..
A Cephalanthus occidentalis in Buttonwillow is registered as a California Big Tree. It measures 24 feet high, with a trunk circumference of 60 inches and a crown spread of 38 feet.
Previously listed in the Cephalotaxaceae family.
Cephalanthus occidentalis var. californicus
Additional Common Names
BUTTON-WILLOW, COMMON BUTTONBUSH, HONEY BELLS
Has Deciduous foliage.
Height: 3 - 15 feet.
Width: 3 - 15 feet.
Growth Rate: 24 to 36 Inches per Year.
Longevity Less than 50 years.
Leaves Lanceolate to Oval, Light Green, Deciduous.
Fragrant Cream or White. Flowers in Summer.
Brown or Red Capsule, Small (0.25 - 0.50 inches), fruiting in Fall Wildlife use it.
Bark Dark Brown, Light Gray or Light Green, Furrowed or Scaly.
Shading Capacity Rated as Moderate in Leaf.
Shading Capacity Rated as Moderate out of Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 2 - 10 and 14 - 21.
USDA Hardiness Zones 5 - 10.
Exposure Full Sun to Partial Shade.
Wet to Moist Soil.
Slightly Acidic to Highly Alkaline Soil pH.
Salinity Tolerance is Moderate Inland.
Seaside Tolerance is Not Suited.
Health, Safety & Environmental Concerns
Branch Strength Rated as Weak.
Root Damage Potential Rated as Low.
Poisonous Health Hazard.
Desirable Wildlife Plant.
Attracts Birds and Butterflies.
Wildlife use Fruit.
Special Uses & Values
Riparian or Screen.
Cite this tree:
SelecTree. "Cephalanthus occidentalis Tree Record." 1995-2020. Apr 6, 2020.
< https://selectree.calpoly.edu/tree-detail/cephalanthus-occidentalis >