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Alstonia yunnanensis; photograph 阿橋 HQ, CC BY-SA 2.0, via Wikimedia Commons CC BY-SA阿橋 HQ, CC BY-SA 2.0, via Wikimedia Commons

Alstonia yunnanensis Diels

Apocynaceae · China South-Central, China Southeast

No habitat climate
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About the genus · Alstonia

Alstonia is a widespread genus of evergreen trees and shrubs, of the family Apocynaceae. It was named by Robert Brown in 1811, after Charles Alston (1685–1760), professor of botany at Edinburgh from 1716 to 1760.

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

Cultivation

Nothing derived: no habitat climate for this species.

Climate across the habitat

No habitat climate can be derived: 40 in-range records, none placed to within 10 km. 40 of the 40 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 · 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 marker25.1, 102.683 · in the densest population, 25 records (63% of those in range)
Kew's description“shrub” · “subtropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 40 georeferenced records inside the native range; the map shows only the 18 openly licensed ones, which alone would put the marker 106 km away. 1 record outside the WCVP native range not used. No climate across the range is derived for this species. 40 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 inside the densest 2° block of the 40 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Other Alstonia 8 in the reference

Alstonia angustiloba Alstonia angustiloba Apocynaceae Photo: CC BY, Steven BodzinAlstonia boonei Alstonia boonei Cheesewood Photo: CC BY, Zac PetersonAlstonia constricta Alstonia constricta Apocynaceae Photo: CC BY, Ethel AardvarkAlstonia macrophylla Alstonia macrophylla Devil-tree Photo: CC BY, Tom FieldAlstonia scholaris Alstonia scholaris Blackboard Tree Photo: CC BY, Rohit Naniwadekar Alstonia spatulata Hard milkwood Alstonia spectabilis Alstonia spectabilis Hard alstonia Photo: CC BY-SA, Steve FitzgeraldAlstonia venenata Alstonia venenata Venenous Alstonia Photo: CC BY-SA, Dinesh Valke

Names & registers

Also known as Acronychia esquirolii; Alstonia esquirolii. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidata

The record

Family
Apocynaceae
Described by
Diels
Native to
China South-Central, China Southeast
Wild records
40 in range · 18 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 2026-10-21
GBIF species record gbif.species answeredasked 2026-10-21
GBIF synonyms gbif.synonyms answeredasked 2026-10-21
GBIF common names gbif.vernacular answeredasked 2026-10-21names fetched 2026-10-21
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 2026-10-2140 in-range records, none placed to within 10 km
Wikidata wikidata answeredasked 2026-10-21
Wikipedia wikipedia nothing to reportasked 2026-10-21
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 nothing to reportasked 2026-10-21
Wikimedia Commons commons answeredasked 2026-10-21
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 8 datasets via GBIF.org; each carries its own licence.

Cultifolio

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