Description from
Flora of China
Basteria Miller; Calycanthus sect. Sinocalycanthus W. C. Cheng & S. Y. Chang; Sinocalycanthus (W. C. Cheng & S. Y. Chang) W. C. Cheng & S. Y. Chang.
Shrubs, deciduous, aromatic. Branchlets dichotomous; buds naked, hidden [or not hidden] by base of petiole. Leaf blade membranous. Flowers terminal on branchlets, solitary, not aromatic, distinctly pedicellate. Tepals numerous, distinctly dimorphic [or not]. Stamens numerous; filaments short; staminodes few. Carpels numerous, with silky hairs. Pseudocarp campanulate, base with an attenuate long stalk, apex constricted. Achenes oblong.
The North American taxa Calycanthus floridus Linnaeus var. floridus, C. floridus var. glaucus (Willdenow) Torrey & A. Gray (C. floridus var. laevigatus (Willdenow) Torrey & A. Gray), and C. occidentalis Hooker & Arnott are sometimes cultivated as garden plants in China.
Three species: China, North America; one species (endemic) in China.