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Rhododendron roxieanum; photograph C T Johansson, CC BY-SA 3.0, via Wikimedia Commons CC BY-SAC T Johansson, CC BY-SA 3.0, via Wikimedia Commons

Rhododendron roxieanum Forrest ex W.W.Sm.

Ericaceae · China South-Central, China North-Central +1 · listed by its genus as a temperate garden plant

Cited as Kew's World Checklist cites it, Rhododendron roxieanum Forrest ex W.W.Sm.: GBIF's backbone key for this page carries the name with another author, Forrest.

No habitat climate
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Rhododendron roxieanum, photograph C T Johansson, CC BY-SA 3.0, via Wikimedia CommonsRhododendron roxieanum, photograph C T Johansson, CC BY-SA 3.0, via Wikimedia CommonsRhododendron roxieanum, photograph Agnieszka Kwiecień, Nova, CC BY-SA 4.0, via Wikimedia CommonsRhododendron roxieanum, photograph Agnieszka Kwiecień, Nova, CC BY-SA 4.0, via Wikimedia CommonsRhododendron roxieanum, photograph Agnieszka Kwiecień, Nova, CC BY-SA 4.0, via Wikimedia CommonsRhododendron roxieanum, photograph Dominicus Johannes Bergsma, CC BY-SA 4.0, via Wikimedia Commons 7 photographs ›

Summary

Rhododendron roxieanum is a species of flowering plant in the family Ericaceae, native to central China and Tibet. Its variety Rhododendron roxieanum var. oreonastes, called the mountain rolled-leaf rhododendron, has gained the Royal Horticultural Society's Award of Garden Merit.

Quoted from Wikipedia, "Rhododendron roxieanum", CC BY-SA 4.0.

About the genus · Rhododendron

Rhododendron, from Ancient Greek ῥόδον (rhódon), meaning "rose", and δένδρον (déndron), meaning "tree", is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are native to eastern Asia and the Himalayan region, but smaller numbers occur elsewhere in Asia, and in North America, Europe and Australia.

Quoted from Wikipedia, "Rhododendron", CC BY-SA 4.0.

Cultivation

Grouped as a temperate garden plant, listed under the genus Rhododendron in the archetype table, and Kew describes it as “shrub”, “temperate”.

Nothing derived: no habitat climate for this species.
How this section is made

Each card states this species' habitat figures with their sources, and what two fixed rules read from them; nothing here says what the plant does, wants or tolerates. The rules · the terms.

Group. Listed under the genus Rhododendron in the archetype table, and Kew describes it as “shrub”, “temperate”. A group is taken only where Kew's description of the species agrees with the table's listing. The table gives no figure and no prose; the cold floor is the habitat's alone.

Climate across the habitat

No habitat climate can be derived: 71 in-range records, none placed to within 10 km. 71 of the 71 in-range records are placed to worse than 10 km, or to no stated accuracy and fewer than three decimals or by something other than a person's observation, and cannot place a climate cell, though they count for the map and its marker.

Natural habitat

Native range as published by WCVP; the marker is where the records are densest and decides nothing.
Openly licensed records inside the range, framed on where they fall.
NativeChina South-Central, China North-Central, Tibet · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Map marker27.177, 99.287 · in the densest population, 49 records (69% of those in range)
Kew's description“shrub” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 71 georeferenced records inside the native range; the map shows only the 62 openly licensed ones, which alone would put the marker 8 km away. 1 record outside the WCVP native range not used. No climate across the range is derived for this species. 71 in-range records are placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stay on the map but off the climate.
Other GBIF keysRecords also from GBIF's key 7327802 (Rhododendron roxieanum Forrest ex W.W.Sm.): Kew's file holds it as Rhododendron roxieanum Forrest ex W.W.Sm. (accepted); 0 records, from GBIF's search API on the day of the build.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 71 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Rhododendron roxieanum, photograph 1did not loadRhododendron roxieanum, photograph 2did not loadRhododendron roxieanum, photograph 3did not loadRhododendron roxieanum, photograph 4did not loadRhododendron roxieanum, photograph 5did not loadRhododendron roxieanum, photograph 6did not load

Photographs: C T Johansson, CC BY-SA 3.0, via Wikimedia Commons (2); Agnieszka Kwiecień, Nova, CC BY-SA 4.0, via Wikimedia Commons (3); Dominicus Johannes Bergsma, CC BY-SA 4.0, via Wikimedia Commons.

Other Rhododendron 574 in the reference

Rhododendron aberconwayi Rhododendron aberconwayi Ericaceae Photo: Public domain, Daderot Rhododendron abietifolium Ericaceae Rhododendron acrophilum Ericaceae Rhododendron adamsii Rhododendron adamsii Sagan Dalya Photo: CC BY, Valentin KosterinRhododendron adenogynum Rhododendron adenogynum Ericaceae Photo: CC BY-SA, Kurt StüberRhododendron adenopodum Rhododendron adenopodum Ericaceae Photo: CC BY-SA, Ulf EliassonRhododendron adenosum Rhododendron adenosum Ericaceae Photo: CC0, DaderotRhododendron aeruginosum Rhododendron aeruginosum Ericaceae Photo: CC BY, Siddarth MachadoRhododendron aganniphum Rhododendron aganniphum Ericaceae Photo: CC0, Daderot Rhododendron agathodaemonis Ericaceae Rhododendron alabamense Rhododendron alabamense Alabama azalea Photo: CC BY, Rob JohnRhododendron albiflorum Rhododendron albiflorum White rhododendron Photo: CC0, author not stated all 575 ›

Names & registers

Also known as Rhododendron aischropeplum; Rhododendron poecilodermum; Rhododendron recurvum; Rhododendron roxieanum var. parvum; Rhododendron roxieanum var. recurvum. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipedia

The record

Family
Ericaceae
Described by
Forrest ex W.W.Sm.
Native to
China South-Central, China North-Central, Tibet
Wild records
71 in range · 62 open

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22GBIF's key 7995088 is Rhododendron roxieanum Forrest; the page links Kew's Rhododendron roxieanum Forrest ex W.W.Sm., and the name is cited as Kew cites it
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredasked 2026-10-22GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 0 records of GBIF's key 7327802, Rhododendron roxieanum Forrest ex W.W.Sm. (Kew's file holds it as Rhododendron roxieanum Forrest ex W.W.Sm. (accepted)): GBIF occurrence search API
Habitat climate climate nothing to reportasked 2026-10-2271 in-range records, none placed to within 10 km
Wikidata wikidata answeredasked 2026-10-22found by its label; its IPNI identifier 333253-1 is Kew's for Rhododendron roxieanum Forrest ex W.W.Sm.
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist taxon inat.taxon not asked
iNaturalist photographs, wild inat.photos.wild not asked
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media nothing to reportasked 2026-10-22
Wikimedia Commons commons answeredasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 14 datasets via GBIF.org; each carries its own licence.

Cultifolio

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