Calycanthus floridus, or commonly known as the eastern sweetshrub, Carolina all spice, or spice bush,[2] is a species of flowering shrub in the family Calycanthaceae.[3] It is identifiable by its dark red flowers and fragrant scent. It is non-invasive and is found in the Southeastern United States region. The Nature Conservancy considers its conservation status to be G5, indicating it is at low risk of extinction.[4]
Calycanthus floridus | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Magnoliids |
Order: | Laurales |
Family: | Calycanthaceae |
Genus: | Calycanthus |
Species: | C. floridus |
Binomial name | |
Calycanthus floridus L.[1] | |
Calycanthus floridus is a shrub that grows to be around 6 to 9 ft (2 to 3 m) tall.[5] Its leaves are a dark green with a pale underside. They are ovate or elliptical in shape and grow to be about 6 inches in length.[5] The leaves are simple, entire, and arranged oppositely along the stem.[6]
The flowers are solitary, featuring a reddish brown to reddish purple color when they bloom in spring. They are aromatic and so are the leaves when bruised.[5] The flowers have a hypanthium that is more than 2 cm (0.8 in) long.[7] The shape of the flowers can be cylindrical, ellipsoid, pyriform, or globose.[8] The flowers have numerous tepals that can either be oblong-elliptic or obovate-lanceolate at maturity.[8] The flowers are perfect, having both stamens and carpels on the flowers. The stamens are numerous, connective beyond the anthers.[7] The carpels are numerous. They are free, with a single ovary in a locule.[7]
The fruits are indehiscent pseudocarps that are about 8 cm (3 in) in length and 5 cm (2 in) in diameter at maturity.[7] They are formed within the receptacle and contain numerous achenes that are roughly 10 mm (0.4 in) long with a 5 mm (0.2 in) diameter.
Calycanthus floridus was first scientifically described by Carl Linnaeus in 1759.[1] It was the only species in his new genus Calycanthus. Linnaeus referred to an earlier illustration by Mark Catesby,[9] contained in a work published from 1731 onwards.
Calycanthus floridus is native to the eastern United States.[10] It prefers sunny habitats but can tolerate moderate amounts of shade. It grows well in environments that feature moist substrate.[11]
It is used in horticulture as the flowers are showy and fragrant.[11] The bark of the plant is edible and is reportedly used as a substitute for cinnamon.[12] The petals of the flower are also reportedly used in tea-making.[12] Strong caution is advised however, as an alkaloid in the plant may lead to heart convulsions.[12] The viscous substance within the plant is reportedly used as a disinfectant.[12]
It is highly resistant to diseases and insects, although it is prone to infection by Agrobacterium tumefaciens, which leads to the formation of crown galls on the stems.[10][13]
This plant has been marked as a pollinator plant, supporting and attracting beetles.[14]
Taxon identifiers |
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