| 1 | Native | Africa | East Tropical Africa | Kenya | | | Turrill, W. B. et al., eds. 1952-. Flora of tropical East Africa. |
| 1 | Native | Africa | East Tropical Africa | Tanzania | | | Turrill, W. B. et al., eds. 1952-. Flora of tropical East Africa. |
| 1 | Native | Africa | East Tropical Africa | Uganda | | | Turrill, W. B. et al., eds. 1952-. Flora of tropical East Africa. |
| 1 | Native | Africa | Northeast Tropical Africa | Eritrea | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Africa | Northeast Tropical Africa | Ethiopia | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Africa | Northeast Tropical Africa | Yemen | Arkhabīl Suquţrá | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Africa | South Tropical Africa | Angola | | | Figueiredo, E. & G. F. Smith. 2008. Plants of Angola. Strelitzia 22: 1-279. National Botanical Institute, Pretoria, South Africa. |
| 1 | Native | Africa | South Tropical Africa | Malawi | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Africa | South Tropical Africa | Mozambique | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Africa | South Tropical Africa | Zambia | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Africa | South Tropical Africa | Zimbabwe | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Africa | West-Central Tropical Africa | Cameroon | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West-Central Tropical Africa | Central African Republic | | | Jardin botanique national de Belgique. 1967-. Flore du Congo, du Rwanda et du Burundi (Flore d'Afrique centrale). |
| 1 | Native | Africa | West-Central Tropical Africa | Congo | | | Jardin botanique national de Belgique. 1967-. Flore du Congo, du Rwanda et du Burundi (Flore d'Afrique centrale). |
| 1 | Native | Africa | West-Central Tropical Africa | Democratic Republic of the Congo | | | Jardin botanique national de Belgique. 1967-. Flore du Congo, du Rwanda et du Burundi (Flore d'Afrique centrale). |
| 1 | Native | Africa | West-Central Tropical Africa | Rwanda | | | Jardin botanique national de Belgique. 1967-. Flore du Congo, du Rwanda et du Burundi (Flore d'Afrique centrale). |
| 1 | Native | Africa | Western Indian Ocean | Madagascar | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Asia-Temperate | Arabian Peninsula | Yemen | | | Wood, J. R. I. 1997. A handbook of the Yemen flora. |
| 1 | Native | Asia-Temperate | Caucasus | Armenia | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Asia-Temperate | Caucasus | Azerbaijan | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Asia-Temperate | Caucasus | Georgia | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Asia-Temperate | Caucasus | Russian Federation-Ciscaucasia | Ciscaucasia | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Asia-Temperate | China | China | Anhui Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Fujian Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Gansu Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Guangdong Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Guangxi Zhuangzu Zizhiqu | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Guizhou Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Hainan Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Henan Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Hubei Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Hunan Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Jiangsu Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Jiangxi Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Shaanxi Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Sichuan Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Xizang Zizhiqu | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Yunnan Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Zhejiang Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | Eastern Asia | Japan | Honshu | | Iwatsuki, K. et al. 1993-. Flora of Japan. |
| 1 | Native | Asia-Temperate | Eastern Asia | Japan | Kyushu | | Iwatsuki, K. et al. 1993-. Flora of Japan. |
| 1 | Native | Asia-Temperate | Eastern Asia | Japan | Ryukyu Islands | | Iwatsuki, K. et al. 1993-. Flora of Japan. |
| 1 | Native | Asia-Temperate | Eastern Asia | Japan | Shikoku | | Iwatsuki, K. et al. 1993-. Flora of Japan. |
| 1 | Native | Asia-Temperate | Eastern Asia | Taiwan | | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | Western Asia | Iran | | | Rechinger, K. H., ed. 1963-. Flora iranica. |
| 1 | Native | Asia-Temperate | Western Asia | Turkey | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 1 | Native | Asia-Tropical | Indian Subcontinent | Bhutan | | | Grierson, A. J. C. & D. J. Long. 1984-. Flora of Bhutan including a record of plants from Sikkim. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | | | Sharma, B. D. et al., eds. 1993-. Flora of India. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | Nepal | | | Press, J. R. et al. 2000-. Annotated checklist of the flowering plants of Nepal (on-line resource) |
| 1 | Native | Asia-Tropical | Indian Subcontinent | Pakistan | | | Rechinger, K. H., ed. 1963-. Flora iranica. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | Sri Lanka | | | Dassanayake, M. D. & F. R. Fosberg, eds. 1980-. A revised handbook to the flora of Ceylon. |
| 1 | Native | Asia-Tropical | Indo-China | Laos | | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Tropical | Indo-China | Thailand | | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Tropical | Indo-China | Vietnam | | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Tropical | Malesia | Indonesia | | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Tropical | Malesia | Malaysia | | | Turner, I. M. 1995. A catalogue of the vascular plants of Malaya. Gardens' Bull. Singapore vol. 47. |
| 1 | Native | Asia-Tropical | Malesia | Philippines | | | Merrill, E. D. 1922-1926. An enumeration of Philippine flowering plants. Note: lists as "Siegesbeckia" |
| 1 | Native | Australasia | Australia | Australia | New South Wales | | Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. |
| 1 | Native | Australasia | Australia | Australia | Northern Territory | | Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. |
| 1 | Native | Australasia | Australia | Australia | Queensland | | Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. |
| 1 | Native | Australasia | Australia | Australia | South Australia | | Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. |
| 1 | Native | Australasia | Australia | Australia | Tasmania | | Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. |
| 1 | Native | Australasia | Australia | Australia | Victoria | | Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. |
| 3 | Adventive | Africa | Macaronesia | Spain | Canarias | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 3 | Adventive | Europe | Eastern Europe | Ukraine | | incl. Krym | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 3 | Adventive | Europe | Middle Europe | Belgium | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 3 | Adventive | Europe | Middle Europe | Germany | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 3 | Adventive | Europe | Northern Europe | United Kingdom | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 3 | Adventive | Europe | Southeastern Europe | Bosnia and Herzegovina | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Africa | Southern Africa | South Africa | Eastern Cape | | Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa. |
| 4 | Naturalized | Africa | Southern Africa | South Africa | KwaZulu-Natal | | Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa. |
| 4 | Naturalized | Africa | Southern Africa | South Africa | Limpopo | | Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa. |
| 4 | Naturalized | Africa | Western Indian Ocean | Mauritius | | | Bosser, J. M. et al., eds. 1976-. Flores des Mascareignes. |
| 4 | Naturalized | Africa | Western Indian Ocean | Reunion | | | Bosser, J. M. et al., eds. 1976-. Flores des Mascareignes. |
| 4 | Naturalized | Africa | Western Indian Ocean | Seychelles | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 4 | Naturalized | Asia-Tropical | Papuasia | Papua New Guinea | | | Institute of Pacific Islands Forestry. Pacific Island Ecosystems at Risk (PIER): plant threats to Pacific ecosystems (on-line resource). |
| 4 | Naturalized | Australasia | Australia | Australia | Western Australia | | Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. |
| 4 | Naturalized | Australasia | New Zealand | New Zealand | | | Allan, H. H. B. et al. 1961-. Flora of New Zealand. |
| 4 | Naturalized | Europe | Southeastern Europe | Italy | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Europe | Southeastern Europe | Romania | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Europe | Southwestern Europe | France | | | Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). |
| 4 | Naturalized | Pacific | North-Central Pacific | United States | Hawaii | | Wagner, W. L. et al. 1990. Manual of the flowering plants of Hawai'i |
| 4 | Naturalized | Pacific | South-Central Pacific | French Polynesia | | | Institute of Pacific Islands Forestry. Pacific Island Ecosystems at Risk (PIER): plant threats to Pacific ecosystems (on-line resource). |
| 4 | Naturalized | Pacific | South-Central Pacific | Pitcairn | | | Institute of Pacific Islands Forestry. Pacific Island Ecosystems at Risk (PIER): plant threats to Pacific ecosystems (on-line resource). |
| 4 | Naturalized | Pacific | Southwestern Pacific | Fiji | | | Smith, A. C. 1979-1991. Flora vitiensis nova. |
| 4 | Naturalized | Pacific | Southwestern Pacific | Kiribati | Gilbert Islands | | Institute of Pacific Islands Forestry. Pacific Island Ecosystems at Risk (PIER): plant threats to Pacific ecosystems (on-line resource). |
| 4 | Naturalized | Pacific | Southwestern Pacific | New Caledonia | | | Institute of Pacific Islands Forestry. Pacific Island Ecosystems at Risk (PIER): plant threats to Pacific ecosystems (on-line resource). |
| 4 | Naturalized | Pacific | Southwestern Pacific | Tonga | | | Institute of Pacific Islands Forestry. Pacific Island Ecosystems at Risk (PIER): plant threats to Pacific ecosystems (on-line resource). |
| 4 | Naturalized | Southern America | Brazil | Brazil | Paraná | | Forzza, R. C. et al., coord. Lista de espécies da flora do Brasil (on-line resource). |
| 4 | Naturalized | Southern America | Brazil | Brazil | Rio de Janeiro | | Forzza, R. C. et al., coord. Lista de espécies da flora do Brasil (on-line resource). |
| 4 | Naturalized | Southern America | Brazil | Brazil | Santa Catarina | | Forzza, R. C. et al., coord. Lista de espécies da flora do Brasil (on-line resource). |
| 4 | Naturalized | Southern America | Brazil | Brazil | São Paulo | | Forzza, R. C. et al., coord. Lista de espécies da flora do Brasil (on-line resource). |
| 4 | Naturalized | Southern America | Caribbean | Hispaniola | | | Acevedo-Rodríguez, P. & M. T. Strong. 2012. Catalogue of seed plants of the West Indies. Smithsonian Contr. Bot. 98 |
| 4 | Naturalized | Southern America | Northern South America | Guyana | | | Funk, V. et al. 2007. Checklist of the plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contr. U.S. Natl. Herb. 55:1-584. |
| 4 | Naturalized | Southern America | Southern South America | Paraguay | Paraguarí | | Instituto de Botánica Darwinion. 2008. Flora del Conosur. Catálogo de las plantas vasculares. Note: lists as "Siegesbeckia" |
| 4 | Naturalized | Southern America | Western South America | Peru | La Libertad | | Brako, L. & J. L. Zarucchi. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45 |
| 6 | Other | | | | | exact native range obscure | |