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Phymatosorus nigrescens (Blume) Pic.Serm.

Polypodiaceae · China South-Central, Hainan +3 · listed by its family as a fern or moss

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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Cultivation

Grouped as a fern or moss, listed under the family Polypodiaceae in the archetype table, and Kew describes it as “rhizomatous geophyte”.

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 family Polypodiaceae in the archetype table, and Kew describes it as “rhizomatous geophyte”. 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 (1 at sea or ice); three are needed for an envelope. 26 of the 28 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 keys of the names Kew's World Checklist holds as this plant: 4024983 (Microsorum nigrescens (Blume) Copel., 174 records), 5669491 (Phymatodes nigrescens (Blume) J.Sm., 12 records), 8955785 (Pleopeltis nigrescens (Blume) T.Moore, 0 records). No name was matched to GBIF; the keys are read from Kew's synonymy. How.

NativeChina South-Central, Hainan, Taiwan, Jawa, Solomon Is. · 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 marker-8.013, 157.009 · in the densest population, 14 records (50% of those in range)
Kew's description“rhizomatous geophyte” · “subtropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 28 georeferenced records inside the native range; the map shows only the 15 openly licensed ones, which alone would put the marker 9 km away. 80 records outside the WCVP native range not used. No climate across the range is derived for this species. 26 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 4024983 (Microsorum nigrescens (Blume) Copel.): Kew's file holds it as Microsorum nigrescens (Blume) Copel. (synonym under Phymatosorus nigrescens (Blume) Pic.Serm.); 174 records, from GBIF's download.Records also from GBIF's key 5669491 (Phymatodes nigrescens (Blume) J.Sm.): Kew's file holds it as Phymatodes nigrescens (Blume) J.Sm. (synonym under Phymatosorus nigrescens (Blume) Pic.Serm.); 12 records, from GBIF's download.Records also from GBIF's key 8955785 (Pleopeltis nigrescens (Blume) T.Moore): Kew's file holds it as Pleopeltis nigrescens (Blume) Carruth. (synonym under Phymatosorus nigrescens (Blume) Pic.Serm.); 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 inside the densest 4° block of the 28 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 Phymatosorus 3 in the reference

Phymatosorus cuspidatus Polypodiaceae Phymatosorus membranifolius Polypodiaceae Phymatosorus papuanus Polypodiaceae

Names & registers

Also known as Polypodium nigrescens; Microsorum nigrescens; Microsorum variabile; Phymatodes nigrescens; Phymatodes variabilis and 4 more. (WCVP, RBG Kew)

IPNIPOWOWikidataWFO

The record

Family
Polypodiaceae
Described by
(Blume) Pic.Serm.
Native to
China South-Central, Hainan, Taiwan +2
Wild records
28 in range · 15 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 Phymatosorus nigrescens (Blume) Pic.Serm. (plant_name_id 3185983), 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 answeredasked 2026-10-22this 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; 174 records of GBIF's key 4024983, Microsorum nigrescens (Blume) Copel. (Kew's file holds it as Microsorum nigrescens (Blume) Copel. (synonym under Phymatosorus nigrescens (Blume) Pic.Serm.)): the GBIF download; 12 records of GBIF's key 5669491, Phymatodes nigrescens (Blume) J.Sm. (Kew's file holds it as Phymatodes nigrescens (Blume) J.Sm. (synonym under Phymatosorus nigrescens (Blume) Pic.Serm.)): the GBIF download; 0 records of GBIF's key 8955785, Pleopeltis nigrescens (Blume) T.Moore (Kew's file holds it as Pleopeltis nigrescens (Blume) Carruth. (synonym under Phymatosorus nigrescens (Blume) Pic.Serm.)): GBIF occurrence search API
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 (1 at sea or ice); three are needed for an envelope
Wikidata wikidata answeredasked 2026-10-22found by Kew's IPNI identifier 17448090-1, POWO 17448090-1
Wikipedia wikipedia nothing to reportasked 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 24 datasets via GBIF.org; each carries its own licence.

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