| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
| Lythraceae | Cuphea aspera | Apalachicola Waxweed | Pine flatwoods. | Endemic to the FL Panhandle (Franklin, Gulf, and Calhoun counties). | 
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| Lythraceae | Cuphea carthagenensis | Colombian Waxweed | Marshes, ditches, floodplain forests, wet hammocks, other wet places. | Native of South America; the northern boundary of the native distribution is unclear. | 
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| Lythraceae | Cuphea glutinosa | Sticky Waxweed | Wet or moist areas. | Native of South America. | 
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| Lythraceae | Cuphea hyssopifolia | False-heather, Mexican-heather | Disturbed areas (frequently cultivated). | Native of the Neotropics. | 
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| Lythraceae | Cuphea procumbens | Firefly Cuphea | Gardens, used in horticultural and persistent or weakly escaped. | Native of Mexico. Reported for NC by Small (1933). Graham (1975) considers this Mexican species to be represented in se. United States only by "garden escapes that do not persist". | 
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| Lythraceae | Cuphea strigulosa | Stiff-haired Waxweed | Disturbed wetlands. | Native of the Neotropics. | 
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| Lythraceae | Cuphea viscosissima | Clammy Cuphea, Blue Waxweed | Dry or wet places, especially over mafic or calcareous rocks. | NH west to IA and KS, south to c. GA, LA, and e. OK. | 
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