Blumea viscosa(Mill.) V.M.Badillo

clammy false oxtongue

WFO wfo-0000048092 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Blumea viscosa, photographed by Francisco Farriols Sarabia
fig. a Francisco Farriols Sarabia, CC BY 4.0 / 2022-05-02 / obs. 194319751
Blumea viscosa, photographed by Bill Levine
fig. b Bill Levine, CC BY 4.0 / obs. 119024817
Blumea viscosa, photographed by 葉子
fig. c 葉子, CC0 1.0 / obs. 110746110
Blumea viscosa, photographed by Juan Cruzado Cortés
fig. d Juan Cruzado Cortés, CC BY-SA 4.0 / obs. 37932095
Blumea viscosa, photographed by Francisco Farriols Sarabia
fig. e Francisco Farriols Sarabia, CC BY 4.0 / obs. 874652
Blumea viscosa, photographed by Juan Cruzado Cortés
fig. f Juan Cruzado Cortés, CC BY-SA 4.0 / obs. 123908856
Blumea viscosa, photographed by Sabarni Sarker
fig. g Sabarni Sarker, CC BY 4.0 / obs. 118233932
Blumea viscosa, photographed by 葉子
fig. h 葉子, CC0 1.0 / obs. 110746751

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 63 botanical countries

Regions where Blumea viscosa is native: Angola, Benin, Botswana, Burkina, Cameroon, Cape Verde, Central African Republic, Chad, Egypt, Eritrea, Ethiopia, Guinea, Guinea-Bissau, Gulf of Guinea Is., Ivory Coast, Kenya, Madagascar, Mali, Mauritania, Mozambique, Namibia, Northern Provinces, Senegal, Somalia, Sudan-South Sudan, Tanzania, Togo, Uganda, Zambia, Zimbabwe, Oman, Saudi Arabia, Yemen, Bangladesh, Cambodia, India, Laos, Myanmar, Nepal, Pakistan, Sri Lanka, Thailand, Vietnam, Mexican Pacific Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Bahamas, Bolivia, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, Guatemala, Honduras, Nicaragua, Panamá, Peru, Venezuela AngolaBeninBotswanaBurkinaCameroonCentral African RepublicChadEgyptEritreaEthiopiaGuineaGuinea-BissauGulf of Guinea Is.Ivory CoastKenyaMadagascarMaliMauritaniaMozambiqueNamibiaNorthern ProvincesSenegalSomaliaSudan-South SudanTanzaniaTogoUgandaZambiaZimbabweOmanSaudi ArabiaYemenBangladeshCambodiaIndiaLaosMyanmarNepalPakistanSri LankaThailandVietnamMexico CentralMexico GulfMexico NortheastMexico NorthwestMexico SoutheastMexico SouthwestBoliviaColombiaCosta RicaCubaEcuadorEl SalvadorGuatemalaHondurasNicaraguaPanamáPeruVenezuela Cape VerdeBahamas
Native distribution of Blumea viscosa, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Angola ANG AFRICA
Benin BEN
Botswana BOT
Burkina BKN
Cameroon CMN
Cape Verde CVI
Central African Republic CAF
Chad CHA
Egypt EGY
Eritrea ERI
Ethiopia ETH
Guinea GUI
Guinea-Bissau GNB
Gulf of Guinea Is. GGI
Ivory Coast IVO
Kenya KEN
Madagascar MDG
Mali MLI
Mauritania MTN
Mozambique MOZ
Namibia NAM
Northern Provinces TVL
Senegal SEN
Somalia SOM
Sudan-South Sudan SUD
Tanzania TAN
Togo TOG
Uganda UGA
Zambia ZAM
Zimbabwe ZIM
Bahamas BAH SOUTHERN AMERICA
Bolivia BOL
Colombia CLM
Costa Rica COS
Cuba CUB
Ecuador ECU
El Salvador ELS
Guatemala GUA
Honduras HON
Nicaragua NIC
Panamá PAN
Peru PER
Venezuela VEN
Bangladesh BAN ASIA-TROPICAL
Cambodia CBD
India IND
Laos LAO
Myanmar MYA
Nepal NEP
Pakistan PAK
Sri Lanka SRL
Thailand THA
Vietnam VIE
Mexican Pacific Is. MXI NORTHERN AMERICA
Mexico Central MXC
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southeast MXT
Mexico Southwest MXS
Oman OMA ASIA-TEMPERATE
Saudi Arabia SAU
Yemen YEM

Not drawn on the map: Mexican Pacific Is.. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Where it actually grows measured, from 426 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 10.9 °C 17.0 °C 21.1 °C
Warmest month, mean daily high 29.3 °C 30.5 °C 36.0 °C
Annual rainfall 387 mm 779 mm 1,856 mm
Rainfall in the driest quarter 2 mm 9 mm 57 mm

It is not found anywhere that gets close to freezing. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 426 research-grade observations of Blumea viscosa that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 35 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Blumea aurita var. aurita
  • Blumea aurita var. foliolosa (DC.) C.D.Adams
  • Blumea glutinosa DC.
  • Blumea guineensis var. guineensis
  • Blumea lyrata (Kunth) V.M.Badillo
  • Blumea obliqua var. aurita (L.f.) Naik & Bhog.
  • Blumea pappii Gand.
  • Blumea senegalensis DC.
  • Blumea viscosa (Mill.) D'Arcy
  • Blumea viscosa var. lyrata (Kunth) D'Arcy
  • Conyza aurita L.f.
  • Conyza chiapensis Brandegee
  • Conyza guineensis Willd.
  • Conyza lyrata Kunth
  • Conyza lyrata var. lyrata
  • Conyza lyrata var. pilosa Fernald
  • Conyza rudis Willd. ex Steud.
  • Conyza senegalensis Sieber ex DC.
  • Conyza senegalensis Willd.
  • Conyza villosa Willd.
  • Erigeron chinensis Siebold ex DC.
  • Erigeron lyratum (Kunth) Gomez
  • Erigeron stipulatus Schumach. & Thonn.
  • Ernstia lyrata (Kunth) V.M.Badillo

and 11 more.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.