Distribution, Identification and Management of Two-Leaf Nightshade (Solanum diphyllum), an Invasive Plant in Florida
Arrangement of fruits on fruiting stem with exposed calyces where fruits have detached. Credits: Stephen H. Brown, UF/IFAS
view on EDIS


Two-leaf nightshade
twin-leaf nightshade
Solanum diphyllum
Florida invasive plant

How to Cite

Brown, Stephen, Chris Marble, and Stephen Enloe. 2020. “Distribution, Identification and Management of Two-Leaf Nightshade (Solanum Diphyllum), an Invasive Plant in Florida”. EDIS 2020 (5). https://doi.org/10.32473/edis-ep588-2020.


Two-leaf nightshade, Solanum diphyllum, is a member of the Solanaceae or potato family. It is native to Mexico southwards to Costa Rica. It has escaped cultivation in Florida and grows as far north as Duval County and from Volusia County south to Miami-Dade County. A "bird-dispersed" volunteer, it occurs in urban and conservation areas and on disturbed land. The plants produce abundant berries with many many small seeds. This new 5-page publication of the UF/IFAS Environmental Horticulture Department is primarily intended for Florida gardeners, landscapers, and land managers, and it contains information on identification, flowering, fruiting, and management recommendations for this widely occurring plant. Written by Stephen H. Brown, Chris Marble, and Stephen F. Enloe.

view on EDIS


Florida Exotic Pest Plant Council (FLEPPC). 2019. “Invasive Species Plant List.”


Knapp, S. 2008. “Typification of Solanum (Solanaceae) Species Described by Martin de Sesse y Lacasta and Jose Mariano Mocino.” Anales del Jardin Botanico de Madrid 65 (1): 7–23.


Langeland, K. A., H. M. McCormick, and K. A. Craddock. 2008. Identification and Biology of Nonnative Plants in Florida’s Natural Areas. SP 257. Gainesville: University of Florida Institute of Food and Agricultural Sciences.

Markle, L. T., W. A. Overholt, and K. A. Langeland. 2014. Natural Area Weeds: Invasive Solanum spp. in Florida. SS AGR 312. Gainesville: University of Florida Institute of Food and Agricultural Sciences. https://edis.ifas.ufl.edu/ag318.

Perkins, K. D., and W. W. Payne. 1978. Guide to the Poisonous and Irritant Plants of Florida. Circular 441. Gainesville: University of Florida Institute of Food and Agricultural Sciences. https://ufdc.ufl.edu/UF00000155/00001.

Knapp, S. 2013. “Solanum diphyllum.” Solanaceae Source: A Global Taxonomic Resource for the Nightshade Family. http://solanaceaesource.org/content/solanum-diphyllum.

“Solanum diphyllum.” n.d. Flora of China 17:317. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200020581.

“Solanum diphyllum.” 2019. UF/IFAS Assessment of Non-Native Plants.


Copyright (c) 2020 UF/IFAS