Native Plants
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Wednesday - May 20, 2015
From: Monrovia, CA
Region: California
Topic: Shrubs
Title: Does Buttonbush Spread?
Answered by: Anne Van Nest
QUESTION:
I live in Los Angeles County. Does Buttonbush spread via its roots/rhizomes? I've got a picture I could send in a reply. Gotta know if it's, what I see, a part of the buttonbush.ANSWER:
Cephalanthus occidentalis (common buttonbush) does indeed spread and become a multistem shrub as long as it is near water. Here's what is on our webpage.
Common buttonbush is a multi-stemmed shrub which grows 6-12 ft. or occasionally taller. Leaves in pairs or in threes, petiolate; blade up to 8 inches long, ovate to narrower, sometimes 1/3 or less as wide as long, with a pointed tip and rounded to tapered base, smooth margins and glossy upper surface, lower surface duller. Glossy, dark-green leaves lack significant fall color. Flowers small, borne in distinctive, dense, spherical clusters (heads) with a fringe of pistils protruded beyond the white corollas. Long-lasting, unusual blossoms are white or pale-pink, one-inch globes. Subsequent rounded masses of nutlets persist through the winter. Trunks are often twisted. Spreading, much-branched shrub or sometimes small tree with many branches (often crooked and leaning), irregular crown, balls of white flowers resembling pincushions, and buttonlike balls of fruit.
Buttonbush is a handsome ornamental suited to wet soils and is also a honey plant. Ducks and other water birds and shorebirds consume the seeds.
Common buttonbush is a spreading, multi-branched shrub or sometimes small tree with many branches (often crooked and leaning), irregular crown, balls of white flowers resembling pincushions, and buttonlike balls of fruit. Buttonbush is a handsome ornamental suited to wet soils and is also a honey plant. Ducks and other water birds and shorebirds consume the seeds.
The USDA has additional information about Cephalanthus occidentalis on their webpage.
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