Dillenia excelsa(Jack) Gilg

WFO wfo-0000647544 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Dillenia excelsa, photographed by Michiel de Groot
fig. a Michiel de Groot, CC BY 4.0 / 2020-03-07 / obs. 63912172
Dillenia excelsa, photographed by Paul Prior
fig. b Paul Prior, CC BY 4.0 / obs. 12264106
Dillenia excelsa, photographed by Christoph Moning
fig. c Christoph Moning, CC BY 4.0 / obs. 60437980
Dillenia excelsa, photographed by Bernard DUPONT
fig. d Bernard DUPONT, CC BY 4.0 / obs. 144119373
Dillenia excelsa, photographed by Jay Pruett
fig. e Jay Pruett, CC BY 4.0 / obs. 183486155
Dillenia excelsa, photographed by Jay Pruett
fig. f Jay Pruett, CC BY 4.0 / obs. 183417173
Dillenia excelsa, photographed by Jay Pruett
fig. g Jay Pruett, CC BY 4.0 / obs. 183414189
Dillenia excelsa, photographed by tlaloc27
fig. h tlaloc27, CC BY 4.0 / obs. 54104832

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.

Where it actually grows measured, from 118 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 21.4 °C 22.2 °C 24.5 °C
Warmest month, mean daily high 28.7 °C 31.1 °C 31.5 °C
Annual rainfall 2,368 mm 2,863 mm 3,147 mm
Rainfall in the driest quarter 417 mm 513 mm 555 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 118 research-grade observations of Dillenia excelsa 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 23 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.

  • Capellia multiflora Blume
  • Capellia pauciflora Zoll. & Moritzi
  • Dillenia excelsa var. borneensis (Miq.) Merr.
  • Dillenia excelsa var. pubescens (Corner) Masam.
  • Dillenia excelsa var. tomentella (Martelli) Masam.
  • Dillenia glabra Martelli
  • Dillenia magnoliifolia Martelli
  • Dillenia mattanensis Martelli
  • Dillenia oblonga (Wall. ex Hook.f. & Thomson) Martelli
  • Dillenia pauciflora (Zoll. & Moritzi) Gilg
  • Dillenia secunda W.Hunter
  • Dillenia tomentella Martelli
  • Wormia excelsa Jack
  • Wormia excelsa f. grandifolia Miq.
  • Wormia excelsa var. borneensis Miq.
  • Wormia excelsa var. pubescens Corner
  • Wormia excelsa var. tomentella (Martelli) Martelli & Corner
  • Wormia grandiflora Miq.
  • Wormia oblonga Wall.
  • Wormia oblonga Wall. ex Hook.f. & Thomson
  • Wormia parviflora Ridl.
  • Wormia pauciflora (Zoll. & Moritzi) Gilg
  • Wormia tomentella Ridl.

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.

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. It has no native range either: Kew's checklist does not cover this taxon.