Buttonbush
Buttonbush is a common name for several plants and may refer to: *''Cephalanthus'', a genus of shrubs or small trees in the madder family, Rubiaceae, especially: **''Cephalanthus occidentalis'', the common ''Cephalanthus'' species in eastern North America *''Conocarpus ''Conocarpus'' is a genus of two species of flowering plants in the family Combretaceae, native to tropical regions of the world. One of the species is a widespread mangrove species, and the other is restricted to a small area around the southern ...

Cephalanthus Occidentalis
''Cephalanthus occidentalis'' is a species of flowering plant in the family Rubiaceae that is native to eastern and southern North America. Common names include buttonbush, common buttonbush, button-willow, buck brush, and honey-bells. Description ''Cephalanthus occidentalis'' is a deciduous shrub or small tree that averages in height, but can reach . The leaves are opposite or in whorls of three, elliptic to ovate, long and broad, with a smooth edge and a short petiole. The flowers are arranged in a dense spherical inflorescence in diameter on a short peduncle. Each flower has a fused white to pale yellow four-lobed corolla forming a long slender tube connecting to the sepals. The stigma protrudes slightly from the corolla. The fruit is a spherical cluster of achenes (nutlets). Taxonomy There are two varieties, not considered distinct by all authorities: *''Cephalanthus occidentalis'' var. ''occidentalis'' (syn. var. ''pubescens'') – common buttonbush. Eastern North Am ...
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Cephalanthus
''Cephalanthus'' is a genus of flowering plants in the family Rubiaceae. There are about six species that are commonly known as buttonbush. Description They are shrubs or small trees growing to tall. The leaves are simple, arranged in opposite pairs or whorls of three. The flowers form a dense globular inflorescence. Distribution and habitat ''Cephalanthus occidentalis'' is native to the eastern United States and Canada. The others occur in tropical regions of the Americas, Africa and Asia. Two species are known in cultivation.Huxley AJ et al. (eds.) ''The New Royal Horticultural Society Dictionary of Gardening.'' The Macmillan Press Limited, London; The Stockton Press, New York. 1992. Systematics ''Cephalanthus'' was named by Linnaeus in ''Species Plantarum'' in 1753.Linnaeus, C''Cephalanthus'' ''Species Plantarum''. 1753. 1: 95 The generic name is derived from the Ancient Greek words κέφαλη (''kephale''), meaning "head", and ἄνθος (''anthos''), meaning "flowe ...
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