|Wikispecies has information related to: Cuphea viscosissima|
Cuphea viscosissima, also known as blue waxweed, clammy cuphea or (ambiguously) as "tarweed", is an herbaceous plant in the loosestrife family. It native to the eastern United States, where it is most often found in open, rocky calcareous areas. It is the most common and widespread Cuphea in the U.S.
This species is notable for its sticky stems. It produces a purple-red flower in late summer.
- Cuphea viscosissima at Germplasm Resources Information Network
- "Cuphea viscosissima". Integrated Taxonomic Information System. Retrieved October 25, 2007.
- Blanchan, Neltje (2002). Wild Flowers: An Aid to Knowledge of our Wild Flowers and their Insect Visitors. Project Gutenberg Literary Archive Foundation.
- Cuphea viscosissima at USDA PLANTS Database
- Cuphea viscosissima at Plants For A Future
- "Cuphea viscosissima". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2013. Retrieved 20 January 2017.
- "Flora of the Southern and Mid-Atlantic States".
- Missouri Botanical Garden
- Graham, Shirley (1988). "Revision of Cuphea Section Heterodon (Lythraceae)". Systematic Botany Monographs. 20. JSTOR 25027697. doi:10.2307/25027697.
- Missouri Plants
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