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|Profile for Cephalanthus occidentalis (Buttonbush)
||Small tree or shrub
||The flowers are produced in a dense globular inflorescence 2.5-3.5 cm diameter on a 2.5–5 cm peduncle. Each flower has a fused white to pale yellow four-lobed corolla forming a long slender tube connecting to the calyx. The stigma is long, protruding from the corolla by about 4 mm.
||The leaves are opposite or in whorls of three, elliptic to ovate, 7-20 cm long and 3-7 cm broad, with an entire margin and a short petiole.
||Growing to 2-10 m (rarely 15 m) tall.
||Aquatic shrub with the stems oftne emerging from the edge of a body of fresh water.
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Regional data and additional images for Cephalanthus occidentalis
Temperate zone season(s): Mid Summer
New Hampshire: (native) July
This page is a profile for the plant species Cephalanthus occidentalis
, used to collect records of where and when this plant was observed blooming, and for providing identification information for use in dichotomous keys. If you would like to help collect data for this or other plants, see Bloom clock project/How to Contribute