Calycanthus floridus sweetshrub; Carolina allspice Calycanthaceae CAFL*; Bx, br; Q, a; R (DeCandido 2001);

Calycanthus floridus.commons.wikimedia.org

Calycanthus floridus.commons.wikimedia.org (Accessed 7/2014).

Calycanthus floridus is a shrub to 3.5 m tall, stems stout, flattened at nodes, aromatic if bruised; densely colonial from rhizomes. 

Leaves opposite stalk to 1 cm long, lateral buds partly covered by base; 5-15 cm long, 2-6 cm wide, elliptic to egg-shaped, mostly smooth, underside softly hairy, margin entire (Radford et al. 1968; Seiler 2007). 

Flowers dark reddish-purple or brownish, 4-7 cm wide, radially symmetrical, petals and sepals the same (tepals) 15-30, linear, spirally arranged, arising from the floral base (Hypanthium), the flower usually appearing rather shaggy, stamens 5-30, sterile stamens 10-25; pistils 5-35, arising from inside the floral base; blooms June-July. 

Calycanthus floridus fruit. James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org  Creative Commons Attribution 3.0 License

Calycanthus floridus fruit. James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org Creative Commons Attribution 3.0 License (Accessed 11/2017).

Fruit green, inflated floral base, becoming dry, brownish 3-6 cm long, 3 cm wide, wrinkled, persistent, eventually splitting open irregularly to release round, hairy seeds about 0.6 cm long; Sept-winter (Flora of North America Editorial Committee, eds.  1993+; Brand 2001). Native in mountains PA & south. 

Wetland status: NL. 

Frequency in NYC: Very infrequent. 

Origin: Native but mostly southern. 

Habitat: Forest understory. These probably escaped or overgrown by natural vegetation.