''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West Indies and tropical Africa.USDA Plants Database
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Other buttonweeds

Many species of ''Diodia'' have been transferred to a closely related genus ''

Diodella ''Diodella'' is a genus of flowering plants in the Family (biology), family Rubiaceae. The genus has a wide distribution range and is found from the United States, USA to tropical America and in tropical Africa. Species *''Diodella angustata'' ( ...

'', and therefore the name buttonweed also applies to these species. There are also many species of false buttonweeds in the related genus '' Spermacoce''. '' Abutilon theophrasti'' in the family Malvaceae is also known by the common name of buttonweed.

Species

* ''

Diodia aulacosperma ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West ...

'' K.Schum. - Socotra, Somalia, Kenya, Tanzania * ''

Diodia barbata ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West Indies and ...

'' (

Poir. Jean Louis Marie Poiret (11 June 1755 in Saint-Quentin7 April 1834 in Paris) was a French clergyman, botanist, and explorer. From 1785 to 1786, he was sent by Louis XVI to Algeria to study the flora. After the French Revolution, he became ...

)

DC. Augustin Pyramus (or Pyrame) de Candolle (, , ; 4 February 17789 September 1841) was a Swiss botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at a herbarium. Within a couple of years de Candolle ...

- Guyana, Dominican Republic * ''

Diodia barbigera ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West Indies and ...

'' Hook. &

Arn. George Arnott Walker Arnott of Arlary (6 February 1799 – 17 April 1868) was a Scottish botanist. Early life George Arnott Walker Arnott was born in Edinburgh in 1799, the son of David Walker Arnott of Arlary. He attended Milnathort Parish ...

- Mexico * ''

Diodia discolor ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West Indies and ...

- French Guiana * ''

Diodia domingensis ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West Indies and ...

- Dominican Republic * ''

Diodia flavescens ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West Indies and ...

Hiern Hiern is a British surname. Notable people with the surname include: * Barry Hiern (born 1951), Australian cricketer *Ross Hiern (1922–1999), Australian cricketer *William Philip Hiern (1839–1925), British mathematician and botanist See also * ...

- Angola, Zambia * ''

Diodia incana ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West ...

'' Aresch. - Ecuador * ''

Diodia kuntzei ''Diodia'' (or buttonweed) is a genus of flowering plants in the Family (biology), family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, t ...

'' K.Schum. - Venezuela, Bolivia, Peru, Brazil, Argentina, Paraguay * ''

Diodia macrophylla ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West ...

'' K.Schum. - Brazil, Paraguay * '' Diodia microcarpa'' K.Schum. - Brazil * ''

Diodia mitens ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West ...

'' Bello - Puerto Rico * ''

Diodia othonii ''Diodia'' (or buttonweed) is a genus of flowering plants in the Family (biology), family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, t ...

'' Rizzini - Brazil * ''

Diodia paludosa ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West ...

'' Kuntze - Paraguay * '' Diodia perforata''

Urb. Ignatz Urban (7 January 1848 – 7 January 1931) was a German botanist. He is known for his contributions to the flora of the Caribbean and Brazil, and for his work as curator of the Berlin Botanical Garden. Born the son of a brewer, Urban s ...

- Haiti * ''

Diodia rubricosa ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West ...

- Ghana, Ivory Coast, Liberia, Nigeria, Sierra Leone * '' Diodia saponariifolia'' (

Cham. Adelbert von Chamisso (; 30 January 178121 August 1838) was a Germans, German poet and botanist, author of ''Peter Schlemihl'', a famous story about a man who sold his shadow. He was commonly known in French as Adelbert de Chamisso (or Chamissot ...

Schltdl. Diederich Franz Leonhard von Schlechtendal (27 November 1794, Xanten – 12 October 1866, Halle an der Saale, Halle) was a German botanist. He studied in Berlin, in 1819 becoming curator of the Botanical Garden in Berlin, Royal Herbarium. He was ...

) K.Schum. * ''

Diodia saponarioides ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West Indies and ...

'' C.Presl - Mexico, Brazil, Argentina, Paraguay * ''

Diodia simplex ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West ...

Sw. Olof Peter Swartz (21 September 1760 – 19 September 1818) was a Swedish botanist and taxonomist. He is best known for his taxonomic work and studies into pteridophytes. Biography Olof Swartz attended the University of Uppsala where he st ...

- Cuba, Jamaica * ''

Diodia spicata ''Diodia'' (or buttonweed) is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West ...

'' Miq. - Panama, Colombia, Venezuela, Guyana, French Guinea, Brazil * ''

Diodia vaginalis ''Diodia'' (or buttonweed) is a genus of flowering plants in the Family (biology), family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, t ...

'' Benth. - Benin, Ghana, Ivory Coast, Liberia, Nigeria, Sierra Leone, Togo, Cameroon, Gabon, Congo-Brazzaville * '' Diodia verticillata'' Vahl - Brazil, Lesser Antilles * ''

Diodia virginiana ''Diodia virginiana'' is a plant species in the Rubiaceae, common name Virginia buttonweed. It is a spreading, matted perennial with opposite leaves, often mottled because of a virus that attacks the foliage. Flowers are white, cross-shaped with ...

'' L. - Virginia buttonweed - south-central and south-eastern United States from Texas to Kansas, east to Florida and New Jersey; also Connecticut, Cuba and Nicaragua. Naturalized in Japan, Taiwan and northern California

References

External links

''Diodia'' in the World Checklist of RubiaceaeJepson Manual TreatmentUSDA Plants Profile
Rubiaceae genera Spermacoceae Taxa named by Carl Linnaeus {{Rubioideae-stub