Wheat is a grass widely cultivated for its seed, a cereal grain which is a worldwide staple food. The many species of wheat together make up the genus Triticum; the most widely grown is common wheat (T. aestivum). The archaeological record suggests that wheat was first cultivated in the regions of the Fertile Crescent around 9600 BCE. Botanically, the wheat kernel is a type of fruit called a caryopsis. Wheat is grown on more land area than any other food crop (220.4 e6ha, 2014). World trade in wheat is greater than for all other crops combined. In 2020, world production of wheat was 761 e6t, making it the second most-produced cereal after maize. Since 1960, world production of wheat and other grain crops has tripled and is expected to grow further through the middle of the 21st century. Global demand for wheat is increasing due to the unique viscoelastic and adhesive properties of gluten proteins, which facilitate the production of processed foods, whose consumption is increasing as a result of the worldwide industrialization process and the westernization of the diet. Wheat is an important source of carbohydrates. Globally, it is the leading source of vegetable protein in human food, having a protein content of about 13%, which is relatively high compared to other major cereals but relatively low in protein quality for supplying essential amino acids. When eaten as the whole grain, wheat is a source of multiple nutrients and dietary fiber. In a small part of the general population, glutenthe major part of wheat proteincan trigger coeliac disease, noncoeliac gluten sensitivity, gluten ataxia, and dermatitis herpetiformis.
No narrative description available for this taxon yet.
Compounds documented for Triticum across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Triticum has left across the world's sequence archives.
At a glance
eDNA detections4
Countries3
08Occurrence & distribution
Record type7 602 records
Wild obs. + sensor2 539
Museum / vouchered2 115
Cultivated / captive2 041
Fossil1
Other906
Origin
Native4
Introduced25
Range
Area of Occupancy AOO13 004 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy66% within 1 km
≤100 m 442≤1 km 709≤10 km 573>10 km 7
1 731 georeferenced · 808 without coordinates
Open the mapobservation + sensor2 539
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy62% within 1 km
≤100 m 24≤1 km 167≤10 km 109>10 km 6
306 georeferenced · 1 809 without coordinates
Open the institutions mapphysical evidence2 115
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy4% within 1 km
≤1 km 10≤10 km 195>10 km 22
227 georeferenced · 1 814 without coordinates
Open the mapnot free-living2 041
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions52 of 99 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
NLD037location not on record
1 192
Paris, FR
141
Canberra, AU
120
Tartu, EE
43
Saint Louis, US
30
Sede di Via Giorgio La Pira del Museo di Storia naturale di Firenze | Via Giorgio La Pira headquarter of the Natural History Museum in Florencelocation not on record
23
Xining, CN
19
South Kensington, GB
18
SWE054location not on record
16
MeiseBGlocation not on record
15
Córdoba, AR
10
MAlocation not on record
8
Uppsala, SE
8
Adam Mickiewicz University in Poznańlocation not on record
7
BClocation not on record
7
Davis, US
6
Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record
6
6
Berlin, DE
6
PUC-RSlocation not on record
5
ARM059location not on record
5
Uniwersytet Wrocławskilocation not on record
5
Bern, CH
5
Pretoria, ZA
5
Dresden, DE
5
Museo Entomologico de Leonlocation not on record
4
Austin, US
4
València, ES
4
POL003location not on record
4
Karlsruhe, DE
4
PRClocation not on record
4
Wlocation not on record
3
Mlocation not on record
3
Auckland, NZ
3
Bergen, NO
3
Central China Normal Universitylocation not on record
3
University of Alberta Museumslocation not on record
3
Cambridge, US
3
nlocation not on record
3
Philadelphia, US
3
John T. Waterhouse Herbariumlocation not on record
3
UnBlocation not on record
2
ENTClocation not on record
2
Fort Worth, US
2
LDlocation not on record
2
DOI/NPS, Greenbelt Parklocation not on record
2
University of Stellenboschlocation not on record
2
CJBGlocation not on record
2
Columbia, US
2
Chengdu, CN
2
Barcelona, ES
2
TAIElocation not on record
2
Olocation not on record
2
Cape Town, ZA
2
Garðabær, IS
2
Université de Bordeauxlocation not on record
2
SLU Artdatabankenlocation not on record
2
College of the Atlantic, Museumlocation not on record
2
Görlitz, DE
2
WTUlocation not on record
2
Tallinn, EE
1
ASUlocation not on record
1
JBRJlocation not on record
1
Whitewater, US
1
Hobart, AU
1
Philadelphia, US
1
Kew, GB
1
Chicago, US
1
Universidad Nacional de Colombia (UNAL)location not on record
1
Mexico City, MX
1
Sichuan Agricultural Universitylocation not on record
1
Claremont, US
1
Lanzhou, CN
1
Alicante, ES
1
WAGlocation not on record
1
Wellington, NZ
1
SEINetlocation not on record
1
Universidad de Caldas (UCaldas)location not on record
1
Victoria, CA
1
US
1
Stockholm, SE
1
GJOlocation not on record
1
Turlock, US
1
Chicago, US
1
Kensington, AU
1
Christchurch, NZ
1
Université du Lomélocation not on record
1
San Luis Obispo, US
1
Museo Nacional de Costa Rica (MNCR)location not on record
1
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
1
Washington, US
1
Canadian Department of Agriculturelocation not on record
1
Pittsburg, US
1
Istituto Agrario Castelnuovolocation not on record
1
Staten Island, US
1
Institut und Museum fuer Geologie und Palaeontologielocation not on record
1
Vitoria, ES
1
Smithfield, AU
1
Chongqing Museumlocation not on record
1
99 institutions · 1 842 of 2 115 vouchered records shown · 272 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA4 detections
Where the DNA of Triticum was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found4
Studies independent surveys4
Countries3
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 4 detections have coordinates
Open the map3 countries0
Palearctic
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median15.4 °C 11.9–20.6
Seasonal swing summer↔winter15.3 °C
Max temp (day)19.9 °C 14.8–24.9
Min temp (night)9.90 °C 8.70–16.2
Precipitation76.2 mm/mo 54.6–211
Air humidity61.3 % 60.1–61.9
Moisture balance89.3 mm/mo
Vapour deficit712 Pa 568–955
Wind speed3.20 m/s
Cloud cover42.6 % 30.8–50.2
CHELSA 1981–2010, ~9 km grid, at location & month of 3 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.