Spermacoce glabra

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smooth false buttonweed
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Gentianales
Family: Rubiaceae
Subfamily: Rubioideae
Tribe: Spermacoceae
Genus: Spermacoce
Species: S. glabra
Binomial name
Spermacoce glabra
  • Spermacoceodes glabrum (Michx.) Kuntze
  • Spermacoce glabra f. latifolia Chodat & Hassl.
  • Spermacoceodes glabrum var. rectum Bacigalupo

Spermacoce glabra, smooth false buttonweed, is a species of plants in the Rubiaceae.[2] The species is common 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.[3] 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).[1][4][5][5][6][7][8][9]


  1. ^ a b Kew World Checklist of Selected Plant Families Spermacoce glabra
  2. ^ André Michaux. 1803. Flora Boreali-Americana 1: 82
  3. ^ Biota of North America Program 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. ^ a b 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.

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