Jamesbrittenia grandiflora(Galpin) Hilliard

WFO wfo-0001220670 Accepted WFO 2026-06 8 photographs CC0 / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Jamesbrittenia grandiflora, photographed by Tony Rebelo
fig. a Tony Rebelo, CC BY-SA 4.0 / 2020-02-24 / obs. 65537016
Jamesbrittenia grandiflora, photographed by Tony Rebelo
fig. b Tony Rebelo, CC BY-SA 4.0 / obs. 63932529
Jamesbrittenia grandiflora, photographed by Tony Rebelo
fig. c Tony Rebelo, CC BY-SA 4.0 / obs. 63932581
Jamesbrittenia grandiflora, photographed by Andrew Deacon
fig. d Andrew Deacon, CC0 1.0 / obs. 30683755
Jamesbrittenia grandiflora, photographed by Peter Warren
fig. e Peter Warren, CC0 1.0 / obs. 33350905
Jamesbrittenia grandiflora, photographed by Tony Rebelo
fig. f Tony Rebelo, CC BY-SA 4.0 / obs. 63994989
Jamesbrittenia grandiflora, photographed by Tony Rebelo
fig. g Tony Rebelo, CC BY-SA 4.0 / obs. 64326522
Jamesbrittenia grandiflora, photographed by Tony Rebelo
fig. h Tony Rebelo, CC BY-SA 4.0 / obs. 63690637

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 2 botanical countries

Regions where Jamesbrittenia grandiflora is native: Eswatini, Northern Provinces EswatiniNorthern Provinces
Native distribution of Jamesbrittenia grandiflora, 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.
RegionTDWG codeContinent
Eswatini SWZ AFRICA
Northern Provinces TVL

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 150 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 2.1 °C 5.3 °C 7.9 °C
Warmest month, mean daily high 22.7 °C 25.1 °C 27.7 °C
Annual rainfall 756 mm 931 mm 1,223 mm
Rainfall in the driest quarter 25 mm 37 mm 59 mm

It is found where winters are cool but frost is light or absent. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 150 research-grade observations of Jamesbrittenia grandiflora 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 2 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.

  • Lyperia grandiflora Galpin
  • Sutera grandiflora (Galpin) Hiern

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.