Calycanthaceae

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Calycanthaceae
Calycanthus floridus - sweet shrub - desc-flower.jpg
Calycanthus floridus
Scientific classification
Kingdom: Plantae
Division: Angiosperms
Class: Magnoliids
Order: Laurales
Family: Calycanthaceae
Lindl.[1]
Genera

Calycanthus
Chimonanthus
Idiospermum
Sinocalycanthus (Chinese Sweetshrub)

The Calycanthaceae (sweetshrubs or spicebushes) are a small family of flowering plants in the order Laurales. The family contains three genera and only 10 species, restricted to warm temperate and tropical regions:

They are aromatic, deciduous shrubs growing to 2–4 m tall, except for Idiospermum, which is a large evergreen tree. The flowers are white to red, with spirally arranged tepals. DNA-based phylogenies indicate the Northern Hemisphere Calycanthus and Chimonanthus diverged from each other in the mid-Miocene, while the Australian Idiospermum had already diverged by the Upper Cretaceous and likely represents a remnant of a former Gondwanan distribution of Calycanthaceae that included South America, as indicated by the occurrence of Cretaceous Calycanthaceae fossils in Brazil.

References[edit]

  1. ^ Angiosperm Phylogeny Group (2009), "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III", Botanical Journal of the Linnean Society 161 (2): 105–121, doi:10.1111/j.1095-8339.2009.00996.x, retrieved 2010-12-10