Dendrobium gracilicauleF.Muell.

WFO wfo-0000939295 Accepted WFO 2026-06 8 photographs CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Dendrobium gracilicaule, photographed by Greg Tasney
fig. a Greg Tasney, CC BY-SA 4.0 / 2022-04-30 / obs. 192606033
Dendrobium gracilicaule, photographed by Greg Tasney
fig. b Greg Tasney, CC BY-SA 4.0 / obs. 182825704
Dendrobium gracilicaule, photographed by Greg Tasney
fig. c Greg Tasney, CC BY-SA 4.0 / obs. 178550790
Dendrobium gracilicaule, photographed by Greg Tasney
fig. d Greg Tasney, CC BY-SA 4.0 / obs. 167638843
Dendrobium gracilicaule, photographed by Greg Tasney
fig. e Greg Tasney, CC BY-SA 4.0 / obs. 167638726
Dendrobium gracilicaule, photographed by Greg Tasney
fig. f Greg Tasney, CC BY-SA 4.0 / obs. 167634756
Dendrobium gracilicaule, photographed by Greg Tasney
fig. g Greg Tasney, CC BY-SA 4.0 / obs. 167640286
Dendrobium gracilicaule, photographed by Greg Tasney
fig. h Greg Tasney, CC BY-SA 4.0 / obs. 167545690

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 7 botanical countries

Regions where Dendrobium gracilicaule is native: Kermadec Is., New South Wales, Norfolk Is., Queensland, Fiji, New Caledonia, Vanuatu New South WalesQueenslandFijiNew Caledonia Kermadec Is.Norfolk Is.Vanuatu
Native distribution of Dendrobium gracilicaule, 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
Kermadec Is. KER AUSTRALASIA
New South Wales NSW
Norfolk Is. NFK
Queensland QLD
Fiji FIJ PACIFIC
New Caledonia NWC
Vanuatu VAN

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 413 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 3.8 °C 7.8 °C 13.3 °C
Warmest month, mean daily high 24.2 °C 27.1 °C 29.8 °C
Annual rainfall 754 mm 1,263 mm 1,885 mm
Rainfall in the driest quarter 96 mm 150 mm 228 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 413 research-grade observations of Dendrobium gracilicaule 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 14 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.

  • Callista elongata Kuntze
  • Callista gracilicaulis (F.Muell.) Kuntze
  • Dendrobium brisbanense Rchb.f.
  • Dendrobium comptonii Rendle
  • Dendrobium elongatum A.Cunn. ex Lindl.
  • Dendrobium floribundum Rchb.f.
  • Dendrobium macropus subsp. gracilicaule (F.Muell.) P.S.Green
  • Dendrobium macropus subsp. howeanum (Maiden) P.S.Green
  • Dendrobium oscari A.D.Hawkes & A.H.Heller
  • Thelychiton comptonii (Rendle) M.A.Clem. & D.L.Jones
  • Thelychiton gracilicaulis (F.Muell.) M.A.Clem. & D.L.Jones
  • Thelychiton howeanus (Maiden) M.A.Clem. & D.L.Jones
  • Tropilis comptonii (Rendle) Rauschert
  • Tropilis gracilicaulis (F.Muell.) Butzin

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.