Spermacoce

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Spermacoce
Spermacoce ocymoides W IMG 2964.jpg
Spermacoce ocymoides
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Rubiaceae
Subfamily: Rubioideae
Tribe: Spermacoceae
Genus: Spermacoce
L.
Type species
Spermacoce tenuior
L.
Synonyms [1]
  • ArbulocarpusTennant
  • BigeloviaSpreng., nom. illeg.
  • BigelowiaDC., orth. var.
  • BorreriaG.Mey., nom. cons.
  • ChaenocarpusNeck. ex A.Juss.
  • ChenocarpusNeck., in opus utique oppr.
  • CovoliaNeck., in opus utique oppr.
  • Dasycephala(DC.) Hook.f.
  • DichrospermumBremek.
  • DiodioidesLoefl.
  • GruhlmaniaNeck., in opus utique oppr.
  • HemidiodiaK.Schum.
  • HypodematiumA.Rich.), nom. illeg.
  • JurgensiaRaf.
  • OctodonThonn.
  • ParagophytonK.Schum.
  • PterostephusC.Presl
  • SpermacoceodesKuntze
  • TardavelAdans., nom. rej.

Spermacoce or false buttonweed [2] is a genus of flowering plants in the family Rubiaceae. It comprises about 275 species found throughout the tropics and subtropics. [3] Its highest diversity is found in the Americas, followed by Africa, Australia and Asia.

Contents

Description

The species are herbs or small shrubs with small- to medium-sized, four-lobed flowers arranged in capitate inflorescences. Some have a brightly coloured calyx and are eye-catching, particularly the Australian species. The corolla is variable in colour, often white, but also all shades of blue, pink and maroon. The fruit is usually a two-seeded capsule, sometimes a schizocarp or nut. [4]

Selected species

Spermacoce is a highly diverse genus with about 275 species in many tropical and subtropical places around the globe. [3] North American species include: [5] [6]

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<i>Spermacoce remota</i> Species of plant

Spermacoce remota, the woodland false buttonweed, is a species of plant in the Rubiaceae. It is native to the southeastern United States, West Indies, Mexico, Central America and South America. It is naturalized in Taiwan, Southeast Asia, China (Guangdong), India, Sri Lanka, New Guinea, Mauritius and many other oceanic islands.

Spermacoce neoterminalis, the Everglades Key false buttonweed, is a species of plant in the Rubiaceae. It is endemic to southern Florida, from the Everglades as far north as Lake Okeechobee.

Spermacoce ovalifolia, the broadleaf false buttonweed, is a species of plants in the Rubiaceae. It is native to Mexico, Central America, parts of the Caribbean, and South America.

Spermacoce brachysepala, the West Indian false buttonweed, is a plant species in the Rubiaceae. It is native to Puerto Rico, Haiti and the Dominican Republic.

Spermacoce keyensis, the Florida false buttonweed, is a species of plants in the family Rubiaceae, first discovered in the Florida Keys. It is found in southern Florida, Bahamas, and the extreme southern tip of Texas.

<i>Spermacoce alata</i> Species of plant

Spermacoce alata, the winged false buttonweed, is a species of plant in the Rubiaceae. It is widespread across the warmer parts of the Western Hemisphere and naturalized in many other parts of the world.

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

Spermacoce prostrata is a species of plants in the Rubiaceae. In the United States, it is widespread in Florida, with a few isolated populations in Alabama and Mississippi. The species is native to Mexico, Central America, the Caribbean (Bahamas, Cuba, Hispaniola, Puerto Rico, Trinidad, Turks & Caicos, the Lesser Antilles, and the Dutch and Venezuelan Antilles. It is also widespread in South America, found in every country except Chile. The species is reportedly naturalized in Hawaii, China, Japan, Taiwan, Sri Lanka, Thailand and Java.

<i>Cornutia</i> Genus of flowering plants

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<i>Mosiera</i> Genus of flowering plants in the family Myrtaceae

Mosiera is a genus of shrubs and small trees in the family Myrtaceae, first described as a genus in 1933. It is native to Mexico, Guatemala, the West Indies, Brazil, and Florida.

References

  1. "Spermacoce L." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-03-18.
  2. USDA, NRCS (n.d.). "Spermacoce". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 25 November 2015.
  3. 1 2 3 4 5 6 7 8 Kew World Checklist of Selected Plant Families
  4. Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera. 2012. Rubiaceae a Verbenaceae. 4(2): i–xvi, 1–533. In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Missouri Botanical Garden Press, St. Louis.
  5. Alftervista Flora of North America
  6. Biota of North America Program