Spermacoce glabra explained

Spermacoce glabra, smooth false buttonweed, is a New World species of plants in the coffee family.^[1]

The species is widespread across much of North America and South America. In the United States, it is found in the southern part of the Mississippi Valley from Illinois to Louisiana, the range extending westward into Texas, Oklahoma and eastern Kansas, and eastward along the Ohio River.^[2] Isolated populations are reported from farther east, in Maryland, Virginia, South Carolina, Georgia and Florida. The species also occurs in southern Mexico (Tabasco and Campeche), Honduras, and South America (Colombia, Venezuela, Ecuador, Brazil, Paraguay, Uruguay and Argentina).^{[3] [4] [5] [6] [7] [8] [9]}

External links

• photo of entire plant
• United StatesDepartment of Agriculture Plants Profile
• photo of herbarium specimen at Missouri Botanical Garden, collected in Missouri,Spermacoce glabra
• Alabama Plant Atlas
• All Things Plant, Photo of the bloom of Smooth False Buttonweed (Spermacoce glabra) posted by purpleinopp
• Plants of the Río Grande Delta
• Gardening Europe
• Cyberflora Louisiana
• Sagebud, Grow Your Garden, Smooth False Buttonweed (Spermacoce glabra)
• Wildflowers of the Escambia Region (western Florida), False Smooth Buttonweed

Notes and References

1. https://www.biodiversitylibrary.org/page/404845#page/105/mode/1up André Michaux. 1803. Flora Boreali-Americana 1: 82
2. http://bonap.net/MapGallery/County/Spermacoce%20glabra.png Biota of North America Program Spermacoce glabra
3. http://apps.kew.org/wcsp/namedetail.do?name_id=193575 Kew World Checklist of Selected Plant Families Spermacoce glabra
4. Forzza, R. C. 2010. Lista de espécies Flora do Brasil http://floradobrasil.jbrj.gov.br/2010. Jardim Botânico do Rio de Janeiro, Rio de Janeiro
5. Martínez Salas, E. M., M. Sousa Sánchez & C. H. Ramos Álvarez. 2001. Región de Calakmul, Campeche. Listados Florísticos de México 22: 1–55.
6. Cowan, C. P. 1983. Flora de Tabasco. Listados Florísticos de México 1: 1–123.
7. Molina Rosito, A. 1975. Enumeración de las plantas de Honduras. Ceiba 19(1): 1–118.
8. Jørgensen, P. M. & S. León-Yánez. (eds.) 1999. Catalogue of the vascular plants of Ecuador, Monographs in Systematic Botany from the Missouri Botanical Garden. 75: i–viii, 1–1181. Missouri Botanical Garden, St. Louis
9. Macbride, J. F. 1936. Rubiaceae, Flora of Peru. Publications of the Field Museum of Natural History, Botanical Series 13(6/1): 3–261.