Example ⟳ +
An example collection, so you can see what this page does. Nothing added here is kept: leaving deletes it.
Colocasia fontanesii; photograph (c) Christopher Stephens, some rights reserved (CC BY-SA) CC BY-SA(c) Christopher Stephens, some rights reserved (CC BY-SA) · observed growing wild · 2026-07-28

Colocasia fontanesii Schott

Blackstem Taro

Araceae · China South-Central, Assam +5

No habitat climate
Add one to my plants
Sow seed
Colocasia fontanesii, photograph (c) Christopher Stephens, some rights reserved (CC BY-SA)Colocasia fontanesii, photograph (c) Christopher Stephens, some rights reserved (CC BY-SA)Colocasia fontanesii, photograph (c) Christopher Stephens, some rights reserved (CC BY-SA)Colocasia fontanesii, photograph (c) Angus Campbell, some rights reserved (CC BY)Colocasia fontanesii, photograph author not stated, no rights reservedColocasia fontanesii, photograph author not stated, no rights reserved 80 photographs ›

About the genus · Colocasia

Colocasia is a genus of flowering plants in the family Araceae, native to Southeast Asia and the Indian subcontinent. Some species are widely cultivated and naturalized in other tropical and subtropical regions. The species C. esculenta (taro) is invasive in wetlands along the Gulf Coast of the United States, where it threatens to displace native wetland plants.

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

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. 2 of the 4 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.
Openly licensed records inside the range, framed on where they fall.
NativeChina South-Central, Assam, Bangladesh, East Himalaya, Laos, Myanmar, Thailand · 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).
Kew's description“tuberous geophyte” · “subtropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 4 georeferenced records inside the native range; the map shows only the 2 openly licensed ones, which alone would put the marker 48 km away. 203 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. 2 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.

Photographs

Colocasia fontanesii, photograph 1did not loadColocasia fontanesii, photograph 2did not loadColocasia fontanesii, photograph 3did not loadColocasia fontanesii, photograph 4did not loadColocasia fontanesii, photograph 5did not loadColocasia fontanesii, photograph 6did not load

Photographs: (c) Christopher Stephens, some rights reserved (CC BY-SA) (3); (c) Angus Campbell, some rights reserved (CC BY); author not stated, no rights reserved · CC0 (2).

Other Colocasia 3 in the reference

Colocasia affinis Colocasia affinis East-Himalayan Decorated Taro Photo: CC BY, swanand kesariColocasia esculenta Colocasia esculenta Taro Photo: CC BY, Adriana Nelly Correa SandovalColocasia fallax Colocasia fallax Araceae Photo: CC BY, Sagnik Dutta Roy

Names & registers

Also known as Colocasia antiquorum f. fontanesii; Colocasia antiquorum var. atropurpurea; Colocasia antiquorum var. fontanesii; Colocasia esculenta var. fontanesii; Colocasia gaoligongensis and 1 more. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataiNaturalist

The record

Family
Araceae
Described by
Schott
Native to
China South-Central, Assam, Bangladesh +4
Wild records
4 in range · 2 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; 11 records within 1 km of a botanic garden, herbarium or zoo left out (2 at a botanic garden or arboretum, 5 at a herbarium, 4 at a zoo; Wikidata's list)
Habitat climate climate nothing to reportasked 2026-10-21only 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 2026-10-21
Wikipedia wikipedia nothing to reportasked 2026-10-21
iNaturalist photographs, wild inat.photos.wild answeredasked 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 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 7 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…