Blumea ripariaDC.

WFO wfo-0000074612 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Blumea riparia, photographed by 葉子
fig. a 葉子, CC0 1.0 / 2022-01-12 / obs. 178183506
Blumea riparia, photographed by 黃美滿
fig. b 黃美滿, CC BY 4.0 / obs. 173577567
Blumea riparia, photographed by 謝麗霦
fig. c 謝麗霦, CC BY 4.0 / obs. 172155149
Blumea riparia, photographed by chiuluan
fig. d chiuluan, CC BY 4.0 / obs. 171759596
Blumea riparia, photographed by 雲一百香果
fig. e 雲一百香果, CC BY 4.0 / obs. 170572017
Blumea riparia, photographed by Agnes Trekker
fig. f Agnes Trekker, CC0 1.0 / obs. 168221675
Blumea riparia, photographed by Agnes Trekker
fig. g Agnes Trekker, CC0 1.0 / obs. 166118796
Blumea riparia, photographed by 謝麗霦
fig. h 謝麗霦, CC BY 4.0 / obs. 166556898

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 26 botanical countries

Regions where Blumea riparia is native: China South-Central, China Southeast, Hainan, Taiwan, Andaman Is., Assam, Borneo, Cambodia, East Himalaya, India, Jawa, Laos, Malaya, Maluku, Myanmar, Nepal, New Guinea, Philippines, Solomon Is., Sulawesi, Sumatera, Thailand, Vietnam, Queensland, New Caledonia, Vanuatu China South-CentralChina SoutheastHainanTaiwanAssamBorneoCambodiaEast HimalayaIndiaJawaLaosMalayaMalukuMyanmarNepalNew GuineaPhilippinesSolomon Is.SulawesiSumateraThailandVietnamQueenslandNew Caledonia Andaman Is.Vanuatu
Native distribution of Blumea riparia, 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
Andaman Is. AND ASIA-TROPICAL
Assam ASS
Borneo BOR
Cambodia CBD
East Himalaya EHM
India IND
Jawa JAW
Laos LAO
Malaya MLY
Maluku MOL
Myanmar MYA
Nepal NEP
New Guinea NWG
Philippines PHI
Solomon Is. SOL
Sulawesi SUL
Sumatera SUM
Thailand THA
Vietnam VIE
China South-Central CHC ASIA-TEMPERATE
China Southeast CHS
Hainan CHH
Taiwan TAI
New Caledonia NWC PACIFIC
Vanuatu VAN
Queensland QLD AUSTRALASIA

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.

Flowering 124 in flower of 168 examined

Peak flowering in Oct. Each bar is the share of Blumea riparia observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 124 of 168 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 5 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Where it actually grows measured, from 1,841 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 7.0 °C 11.5 °C 14.4 °C
Warmest month, mean daily high 25.4 °C 29.0 °C 30.7 °C
Annual rainfall 2,144 mm 3,172 mm 4,696 mm
Rainfall in the driest quarter 99 mm 218 mm 786 mm

It is barely found anywhere that freezes. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 1,841 research-grade observations of Blumea riparia 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. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 5 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 chinensis var. riparia (DC.) King & Gamble
  • Blumea megacephala (Randeria) C.C.Chang & Y.Q.Tseng
  • Blumea riparia f. riparia
  • Blumea riparia var. riparia
  • Leveillea riparia (DC.) Vaniot

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. 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.