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Decarya madagascariensis; photograph Frank Vincentz, CC BY-SA 3.0, via Wikimedia Commons CC BY-SAFrank Vincentz, CC BY-SA 3.0, via Wikimedia Commons

Decarya madagascariensis Choux

Didiereaceae · Madagascar

No habitat climate
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Decarya madagascariensis, photograph Frank Vincentz, CC BY-SA 3.0, via Wikimedia CommonsDecarya madagascariensis, photograph Frank Vincentz, CC BY-SA 3.0, via Wikimedia CommonsDecarya madagascariensis, photograph Frank Vincentz, CC BY-SA 3.0, via Wikimedia CommonsDecarya madagascariensis, photograph Daderot, Public domain, via Wikimedia CommonsDecarya madagascariensis, photograph Daderot, Public domain, via Wikimedia CommonsDecarya madagascariensis, photograph brewbooks from near Seattle, USA, CC BY-SA 2.0, via Wikimedia Commons 10 photographs ›

Summary

Decarya is a monotypic genus of flowering plants belonging to the family Didiereaceae. It has one species, Decarya madagascariensis, a shrub or tree endemic to southern Madagascar. It grows up to 6 meters in height, with zig-zagging branches covered in short spines.

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

Cultivation

Nothing derived: no habitat climate for this species.

Climate across the habitat

No habitat climate can be derived: 46 in-range records, none placed to within 10 km. 46 of the 46 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.
NativeMadagascar · 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-24.751, 44.692 · in the densest population, 44 records (96% of those in range)
Kew's description“shrub or tree” · “desert or dry shrubland” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 46 georeferenced records inside the native range; the map shows only the 40 openly licensed ones, which alone would put the marker 167 km away. No climate across the range is derived for this species. 46 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 46 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Decarya madagascariensis, photograph 1did not loadDecarya madagascariensis, photograph 2did not loadDecarya madagascariensis, photograph 3did not loadDecarya madagascariensis, photograph 4did not loadDecarya madagascariensis, photograph 5did not loadDecarya madagascariensis, photograph 6did not load

Photographs: Frank Vincentz, CC BY-SA 3.0, via Wikimedia Commons (3); Daderot, Public domain, via Wikimedia Commons (2); brewbooks from near Seattle, USA, CC BY-SA 2.0, via Wikimedia Commons.

Names & registers

Also known as Alluaudia geayi. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Didiereaceae
Described by
Choux
Native to
Madagascar
Wild records
46 in range · 40 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 2026-10-2246 in-range records, none placed to within 10 km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22Wikipedia redirects Decarya madagascariensis to Decarya, this species' genus (Q17413007), which holds one accepted species in Kew's WCVP
iNaturalist photographs, wild inat.photos.wild nothing to reportasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media nothing to reportasked 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

Opening your plants…