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Platycerium ridleyi; photograph (c) Steven Whitebread, some rights reserved (CC BY) CC BY(c) Steven Whitebread, some rights reserved (CC BY) · observed growing wild · 2023-06-02

Platycerium ridleyi Christ

Ridley’s staghorn fern

Polypodiaceae · Thailand, Borneo +2 · listed by its genus as an epiphyte

No habitat climate
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Platycerium ridleyi, photograph (c) Steven Whitebread, some rights reserved (CC BY)Platycerium ridleyi, photograph (c) 呂一起(Lyu yi-chi), some rights reserved (CC BY)Platycerium ridleyi, photograph (c) 呂一起(Lyu yi-chi), some rights reserved (CC BY)Platycerium ridleyi, photograph (c) 呂一起(Lyu yi-chi), some rights reserved (CC BY)Platycerium ridleyi, photograph (c) 呂一起(Lyu yi-chi), some rights reserved (CC BY)Platycerium ridleyi, photograph (c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) 12 photographs ›

About the genus · Platycerium

Platycerium is a genus of about 18 fern species in the polypod family, Polypodiaceae. Ferns in this genus are widely known as staghorn or elkhorn ferns due to their uniquely shaped fronds. This genus is epiphytic and is native to tropical and temperate areas of South America, Africa, Southeast Asia, Australia, and New Guinea.

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

Cultivation

Grouped as an epiphyte, listed under the genus Platycerium in the archetype table, and Kew describes it as “epiphyte”.

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 Platycerium in the archetype table, and Kew describes it as “epiphyte”. 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: Only 1 distinct land cell of the climate grid holds an in-range record placed to within 10 km; three are needed for an envelope. 88 of the 89 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.
NativeThailand, Borneo, Malaya, Sumatera · 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 marker5.836, 117.881 · in the densest population, 43 records (48% of those in range)
Kew's description“epiphyte” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 89 georeferenced records inside the native range; the map shows only the 25 openly licensed ones, which alone would put the marker 3 km away. No climate across the range is derived for this species. 88 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.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 89 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Platycerium ridleyi, photograph 1did not loadPlatycerium ridleyi, photograph 2did not loadPlatycerium ridleyi, photograph 3did not loadPlatycerium ridleyi, photograph 4did not loadPlatycerium ridleyi, photograph 5did not loadPlatycerium ridleyi, photograph 6did not load

Photographs: (c) Steven Whitebread, some rights reserved (CC BY); (c) 呂一起(Lyu yi-chi), some rights reserved (CC BY) (5).

Other Platycerium 16 in the reference

Platycerium alcicorne Platycerium alcicorne Polypodiaceae Photo: CC BY, i_c_riddellPlatycerium andinum Platycerium andinum Polypodiaceae Photo: CC BY, Martin VallejosPlatycerium bifurcatum Platycerium bifurcatum Elkhorn fern Photo: CC0, author not statedPlatycerium coronarium Platycerium coronarium Elkhorn fern Photo: CC BY, Michael BerardozziPlatycerium elephantotis Platycerium elephantotis Angola staghorn fern Photo: CC BY-SA, alanbedfordshawPlatycerium ellisii Platycerium ellisii Polypodiaceae Photo: CC0, author not statedPlatycerium grande Platycerium grande Polypodiaceae Photo: CC BY, Annika LindqvistPlatycerium hillii Platycerium hillii Elkhorn fern Photo: CC BY, Brendan McIntyrePlatycerium holttumii Platycerium holttumii Polypodiaceae Photo: CC BY, chrisdtPlatycerium madagascariense Platycerium madagascariense Polypodiaceae Photo: CC BY, Louis AuregliaPlatycerium quadridichotomum Platycerium quadridichotomum Polypodiaceae Photo: CC BY, amantedarmaninPlatycerium stemaria Platycerium stemaria Triangular staghorn fern Photo: CC BY, avocat all 17 ›

Names & registers

Also known as Platycerium biforme var. erectum; Platycerium coronarium var. cucullatum. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataiNaturalist

The record

Family
Polypodiaceae
Described by
Christ
Native to
Thailand, Borneo, Malaya +1
Wild records
89 in range · 25 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 2026-10-22
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 answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21
Habitat climate climate nothing to reportasked 2026-10-22only 1 distinct land cell of the climate grid holds an in-range record placed to within 10 km; three are needed for an envelope
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia nothing to reportasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22none of the photographs on this page is credited to GBIF: those shown are other sources', and GBIF's were the same photographs or were set aside by the photograph rules
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 4 datasets via GBIF.org; each carries its own licence.

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