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Dalbergia tonkinensis; photograph Daderot, CC0, via Wikimedia Commons CC0Daderot, CC0, via Wikimedia Commons

Dalbergia tonkinensis Prain

Fabaceae · Hainan, Vietnam

No habitat climate
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Dalbergia tonkinensis, photograph Vietkool97, CC BY-SA 3.0, via Wikimedia CommonsDalbergia tonkinensis, photograph Vietkool97, CC BY-SA 3.0, via Wikimedia CommonsDalbergia tonkinensis, photograph Vietkool97, CC BY-SA 3.0, via Wikimedia CommonsDalbergia tonkinensis, photograph Quynhtho.lotus, CC BY-SA 4.0, via Wikimedia CommonsDalbergia tonkinensis, photograph Quynhtho.lotus, CC BY-SA 4.0, via Wikimedia CommonsDalbergia tonkinensis, photograph Bdanh, CC BY-SA 3.0, via Wikimedia Commons 12 photographs ›

Summary

Dalbergia tonkinensis (or sua) is a species of legume in the family Fabaceae. It is a small tree, 5–13 metres (16–43 ft) tall, found in Hainan Island of China and Vietnam. It is threatened by habitat loss and overexploitation for timber.

Quoted from Wikipedia, "Dalbergia tonkinensis", CC BY-SA 4.0.

About the genus · Dalbergia

Dalbergia is a large genus of small to medium-size trees, shrubs and lianas in the pea family, Fabaceae, subfamily Faboideae. It was recently assigned to the informal monophyletic Dalbergia clade : the Dalbergieae. The genus has a wide distribution, native to the tropical regions of Central and South America, Africa, Madagascar and Southern Asia.

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

Cultivation

Nothing derived: no habitat climate for this species.

Climate across the habitat

No habitat climate can be derived: 6 in-range records, none placed to within 10 km. 6 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.
NativeHainan, 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 marker18.62, 109.7 · in the densest population, 4 records (67% of those in range)
Kew's description“tree” · “seasonally dry tropical” · 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 5 openly licensed ones, which alone would put the marker 62 km away. Under a dozen records behind the map. No climate across the range is derived for this species. 6 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

Dalbergia tonkinensis, photograph 1did not loadDalbergia tonkinensis, photograph 2did not loadDalbergia tonkinensis, photograph 3did not loadDalbergia tonkinensis, photograph 4did not loadDalbergia tonkinensis, photograph 5did not loadDalbergia tonkinensis, photograph 6did not load

Photographs: Vietkool97, CC BY-SA 3.0, via Wikimedia Commons (3); Quynhtho.lotus, CC BY-SA 4.0, via Wikimedia Commons (2); Bdanh, CC BY-SA 3.0, via Wikimedia Commons.

Other Dalbergia 18 in the reference

Dalbergia armata Dalbergia armata Thorny Rope Photo: CC BY, Mark CostelloDalbergia assamica Dalbergia assamica Fabaceae Photo: CC0, LannafoliumDalbergia benthamii Dalbergia benthamii Bentham's Rosewood Photo: CC BY, Denys VynokurovDalbergia cochinchinensis Dalbergia cochinchinensis Siamese Rosewood Photo: CC0, PamputtDalbergia ecastaphyllum Dalbergia ecastaphyllum Coinvine Photo: CC BY, Guillaume DelaitreDalbergia hupeana Dalbergia hupeana Hwangdan Photo: Public domain, CiftoniaDalbergia lanceolaria Dalbergia lanceolaria Fabaceae Photo: CC BY, Ravuri Krishna ChaitanyaDalbergia latifolia Dalbergia latifolia Indian rosewood Photo: CC BY, Ravuri Krishna ChaitanyaDalbergia melanoxylon Dalbergia melanoxylon African blackwood Photo: CC BY, Aadi KulkarniDalbergia millettii Dalbergia millettii Fabaceae Photo: CC0, author not statedDalbergia miscolobium Dalbergia miscolobium Fabaceae Photo: CC BY, Marcio Santos FerreiraDalbergia nigra Dalbergia nigra Bahia rosewood Photo: CC BY, Diogo Luiz all 19 ›

Names & registers

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Fabaceae
Described by
Prain
Native to
Hainan, Vietnam
Wild records
6 in range · 5 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; 1 record within 1 km of a botanic garden, herbarium or zoo left out (1 at a botanic garden or arboretum; Wikidata's list)
Habitat climate climate nothing to reportasked 2026-10-226 in-range records, none placed to within 10 km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
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 5 datasets via GBIF.org; each carries its own licence.

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