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Vincetoxicum sui; photograph Jacy Chen, CC BY, iNaturalist via GBIF CC BYJacy Chen, CC BY, iNaturalist via GBIF

Vincetoxicum sui (Y.H.Tseng & C.T.Chao) T.C.Hsu

Apocynaceae · Taiwan

No habitat climate
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Vincetoxicum sui, photograph Jacy Chen, CC BY, iNaturalist via GBIFVincetoxicum sui, photograph Jacy Chen, CC BY, iNaturalist via GBIFVincetoxicum sui, photograph Jacy Chen, CC BY, iNaturalist via GBIFVincetoxicum sui, photograph Jacy Chen, CC BY, iNaturalist via GBIFVincetoxicum sui, photograph Jacy Chen, CC BY, iNaturalist via GBIFVincetoxicum sui, photograph 黃美滿, CC BY, iNaturalist via GBIF 9 photographs ›

Cultivation

Nothing derived: no habitat climate for this species.

Climate across the habitat

No habitat climate can be derived: Only 2 distinct land cells of the climate grid hold an in-range record placed to within 10 km; three are needed for an envelope. 4 of the 6 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.
NativeTaiwan · 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 marker21.947, 120.839 · in the densest population, 6 records (100% of those in range)
Kew's description“temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 6 georeferenced records inside the native range; the map shows only the 4 openly licensed ones, which alone would put the marker 2 km away. 11 records outside the WCVP native range not used. Under a dozen records behind the map. No climate across the range is derived for this species. 4 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 6 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Vincetoxicum sui, photograph 1did not loadVincetoxicum sui, photograph 2did not loadVincetoxicum sui, photograph 3did not loadVincetoxicum sui, photograph 4did not loadVincetoxicum sui, photograph 5did not loadVincetoxicum sui, photograph 6did not load

Photographs: Jacy Chen, CC BY, iNaturalist via GBIF (5); 黃美滿, CC BY, iNaturalist via GBIF.

Other Vincetoxicum 17 in the reference

Vincetoxicum × ascyrifolium Vincetoxicum × ascyrifolium Apocynaceae Photo: CC BY-SA, peganum from Small Dole, EnglandVincetoxicum atratum Vincetoxicum atratum Black-end swallow-wort Photo: CC BY, Licheng ShihVincetoxicum forrestii Vincetoxicum forrestii Apocynaceae Photo: CC BY, Wang.QGVincetoxicum funebre Vincetoxicum funebre Apocynaceae Photo: CC BY, Konstantin GrebennikovVincetoxicum fuscatum Vincetoxicum fuscatum Apocynaceae Photo: CC0, Mirko Ubović Vincetoxicum hainanense Apocynaceae Vincetoxicum hirsutum Vincetoxicum hirsutum Ovate Tylophora Photo: CC0, 葉子Vincetoxicum hirundinaria Vincetoxicum hirundinaria White swallow-wort Photo: CC BY, Мирослав СоболевVincetoxicum indicum Vincetoxicum indicum Indian Ipecac Photo: CC0, Haneesh K M Vincetoxicum linifolium Apocynaceae Vincetoxicum mongolicum Vincetoxicum mongolicum Apocynaceae Photo: CC BY, Wang.QGVincetoxicum nigrum Vincetoxicum nigrum Black swallow-wort Photo: CC0, author not stated all 18 ›

Names & registers

Also known as Tylophora sui. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidata

The record

Family
Apocynaceae
Described by
(Y.H.Tseng & C.T.Chao) T.C.Hsu
Native to
Taiwan
Wild records
6 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 2026-10-22
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 2 distinct land cells of the climate grid hold an in-range record placed to within 10 km; three are needed for an envelope
Wikidata wikidata answeredasked 2026-10-22found by the GBIF record of Tylophora sui, an older name with the same type; IPNI and POWO linked by Kew's number for Vincetoxicum sui (Y.H.Tseng & C.T.Chao) T.C.Hsu (the item's: IPNI 77215706-1, POWO 77215706-1)
Wikipedia wikipedia nothing to reportasked 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 answeredasked 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 4 datasets via GBIF.org; each carries its own licence.

Cultifolio

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