Derris taiwaniana (Hayata) Z.Q.Song
· doubtful
Cited as Kew's World Checklist cites it, Derris taiwaniana (Hayata) Z.Q.Song: GBIF's backbone key for this page carries the name with another author, Matsum. ex Hayata.
No habitat climate
Photographs not checked
iNaturalist was 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.Summary
Derris taiwaniana is a perennial climbing shrub belonging to the genus Derris. It is known by several synonyms, including Millettia pachycarpa and M. taiwaniana. It is widely used in traditional practices, such as for poisoning fish, agricultural pesticide, blood tonic, and treatments of cancer and infertility. The bark fiber is used for making strong ropes.
Quoted from Wikipedia, "Derris taiwaniana", CC BY-SA 4.0.
Cultivation
Nothing derived: no habitat climate for this species.
Climate across the habitat
No habitat climate can be derived: 27 in-range records, none placed to within 10 km. 27 of the 27 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 Southeast, Tibet, Taiwan, Assam, Bangladesh, East Himalaya, Nepal, Laos, Myanmar, Thailand, Vietnam · 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 marker24.65, 121.35 · in the densest population, 22 records (81% of those in range)
Kew's description“climbing shrub or liana” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 27 georeferenced records inside the native range; the map shows only the 4 openly licensed ones, which alone would put the marker 2120 km away. No climate across the range is derived for this species. 27 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 3969454 (Whitfordiodendron taiwanianum (Hayata) Ohwi): Kew's file holds it as Whitfordiodendron taiwanianum (Hayata) Ohwi (synonym under Derris taiwaniana (Hayata) Z.Q.Song); 0 records, from GBIF's search API on the day of the build.Records also from GBIF's key 3970522 (Pongamia taiwaniana Hayata): Kew's file holds it as Pongamia taiwaniana Hayata (synonym under Derris taiwaniana (Hayata) Z.Q.Song); 0 records, from GBIF's search API on the day of the build.Records also from GBIF's key 5355734 (Millettia taiwaniana (Hayata) Hayata): Kew's file holds it as Millettia taiwaniana (Hayata) Hayata (synonym under Derris taiwaniana (Hayata) Z.Q.Song); 43 records, from GBIF's search API on the day of the build.Records also from GBIF's key 12020865 (Derris taiwaniana (Hayata) Z.Q.Song): Kew's file holds it as Derris taiwaniana (Hayata) Z.Q.Song (accepted); 5 records, from GBIF's search API on the day of the build.
How this section is made
The map marker: the centre of the tenth-degree cell nearest the middle (no openly licensed record lies in the population, so no record's coordinates are published) of the densest 1° population of the 27 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 was skipped (not asked) when this page was built; GBIF's observation records with coordinates hold none. Not a statement that none exist.
Related
Other Derris 4 in the reference
Derris alborubra Fabaceae Photo: CC BY, Eugene Popov
Derris elliptica Oiltree Photo: CC BY, pbsg
Derris laxiflora Fabaceae Photo: CC BY, 呂一起(Lyu yi-chi)
Derris trifoliata Threeleaf derris Photo: CC BY, Doreen Names & registers
The record
Family
Fabaceae
Described by
(Hayata) Z.Q.Song
Native to
China South-Central, China Southeast, Tibet +9
Wild records
27 in range · 4 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 5633561 is Derris taiwaniana Matsum. ex Hayata; the page links Kew's Derris taiwaniana (Hayata) Z.Q.Song, and the name is cited as Kew cites itGBIF synonyms
gbif.synonyms answeredasked 2026-10-22GBIF common names
gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22WCVP native range
wcvp.distribution answeredas of 2026-06-04GBIF occurrence records
gbif.occurrences answeredasked 2026-10-22no record under GBIF's key 5633561; 0 records of GBIF's key 3969454, Whitfordiodendron taiwanianum (Hayata) Ohwi (Kew's file holds it as Whitfordiodendron taiwanianum (Hayata) Ohwi (synonym under Derris taiwaniana (Hayata) Z.Q.Song)): GBIF occurrence search API; 0 records of GBIF's key 3970522, Pongamia taiwaniana Hayata (Kew's file holds it as Pongamia taiwaniana Hayata (synonym under Derris taiwaniana (Hayata) Z.Q.Song)): GBIF occurrence search API; 43 records of GBIF's key 5355734, Millettia taiwaniana (Hayata) Hayata (Kew's file holds it as Millettia taiwaniana (Hayata) Hayata (synonym under Derris taiwaniana (Hayata) Z.Q.Song)): GBIF occurrence search API; 5 records of GBIF's key 12020865, Derris taiwaniana (Hayata) Z.Q.Song (Kew's file holds it as Derris taiwaniana (Hayata) Z.Q.Song (accepted)): GBIF occurrence search API; 5 records within 1 km of a botanic garden, herbarium or zoo left out (5 at a botanic garden or arboretum; Wikidata's list)Habitat climate
climate nothing to reportasked 2026-10-2227 in-range records, none placed to within 10 kmWikidata
wikidata answeredasked 2026-10-22found by its label; its POWO identifier 77249080-1 is Kew's for Derris taiwaniana (Hayata) Z.Q.SongWikipedia
wikipedia answeredasked 2026-10-22iNaturalist taxon
inat.taxon not askediNaturalist photographs, wild
inat.photos.wild not askediNaturalist photographs, cultivated
inat.photos.cultivated not askedGBIF media
gbif.media nothing to reportasked 2026-10-22Wikimedia Commons
commons nothing to reportasked 2026-10-22OpenAlex papers
openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshotEvery 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.