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Osmunda javanica Blume

Osmundaceae · China South-Central, Hainan +13

English names not checked: Wikidata's common names were not read for this page.

No habitat climate
Photographs not checked iNaturalist and GBIF media were skipped (not asked) when this page was built. Not asked, or not answered, is not "none": nothing here claims there is none. Why the site says it this way.
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Summary

Plenasium javanicum is a fern in the family Osmundaceae. The genus Plenasium is recognized in the Pteridophyte Phylogeny Group classification of 2016 (PPG I); however, some sources place all Plenasium species in a more broadly defined Osmunda, treating this species as Osmunda javanica. It has a wide native distribution in south-eastern Asia, being found in the Eastern Himalaya, south-central and south east China (including Hainan), Indochina, the Philippines, Borneo, Sumatra, Sulawesi and Java.

Quoted from Wikipedia, "Plenasium javanicum", CC BY-SA 4.0; its title is one of this species' older names (GBIF Backbone), which is the proof that the article is this species'.

Cultivation

Nothing derived: no habitat climate for this species.

Climate across the habitat

No habitat climate can be derived: 55 in-range records, none placed to within 10 km. 55 of the 55 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.

This species has no GBIF key of its own. Its records are GBIF's under the key of the name Kew's World Checklist holds as this plant: 8205403 (Plenasium javanicum (Blume) C.Presl, 90 records). No name was matched to GBIF; the keys are read from Kew's synonymy. How.

NativeChina South-Central, Hainan, China Southeast, East Himalaya, Cambodia, Laos, Myanmar, Thailand, Vietnam, Borneo, Jawa, Malaya, Philippines, Sulawesi, 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 marker22.911, 105.234 · in the densest population, 25 records (45% of those in range)
Kew's description“wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 55 georeferenced records inside the native range; the map shows only the 44 openly licensed ones, which alone would put the marker 41 km away. 2 records outside the WCVP native range not used. No climate across the range is derived for this species. 55 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 8205403 (Plenasium javanicum (Blume) C.Presl): Kew's file holds it as Plenasium javanicum (Blume) C.Presl (synonym under Osmunda javanica Blume); 90 records, from GBIF's download.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population inside the densest 4° block of the 55 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Not checked. iNaturalist and GBIF media were skipped (not asked) when this page was built. Not a statement that none exist.

Other Osmunda 7 in the reference

Osmunda banksiifolia Osmunda banksiifolia Osmundaceae Photo: CC BY, Kevin FaccendaOsmunda claytoniana Osmunda claytoniana Osmundaceae Photo: Public domain, DaderotOsmunda japonica Osmunda japonica Asian royal fern Photo: CC BY, 岸本年郎Osmunda lancea Osmunda lancea Osmundaceae Photo: CC BY-SA, KeisotyoOsmunda regalis Osmunda regalis Royal fern Photo: CC BY, João LimaOsmunda spectabilis Osmunda spectabilis Royal fern Photo: CC BY, harrier Osmunda vachellii Osmundaceae

Names & registers

Also known as Osmunda blechnoides; Plenasium javanicum. (WCVP, RBG Kew)

IPNIPOWOWikidataWFOWikipedia

The record

Family
Osmundaceae
Described by
Blume
Native to
China South-Central, Hainan, China Southeast +12
Wild records
55 in range · 44 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
Kew's names (WCVP) kew.names answeredas of 2026-06-04Kew's entry Osmunda javanica Blume (plant_name_id 3144288), read from Kew's names file
GBIF species record gbif.species not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
GBIF synonyms gbif.synonyms not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
GBIF common names gbif.vernacular not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredas of 2026-10-21this species has no GBIF key of its own; its records are read under GBIF's keys for the names Kew's file holds as this plant, never by a name matched; GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 90 records of GBIF's key 8205403, Plenasium javanicum (Blume) C.Presl (Kew's file holds it as Plenasium javanicum (Blume) C.Presl (synonym under Osmunda javanica Blume)): the GBIF download
Habitat climate climate nothing to reportasked 2026-10-2255 in-range records, none placed to within 10 km
Wikidata wikidata answeredasked 2026-10-22found by Kew's IPNI identifier 17168880-1, POWO 17168880-1
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild not asked
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media not askedGBIF's backbone holds no one accepted species of this name, and a name it holds only as another species' synonym is not taken for this one, so GBIF's records were not asked
Wikimedia Commons commons nothing to reportasked 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 16 datasets via GBIF.org; each carries its own licence.

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