Lactuca tatarica
(L.) C.A.Mey. · speciesAt a glance
Sources12 archives
Databases and archives Lactuca tatarica's data was compiled from.
WikipediaWikimedia Foundation8 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility9 652 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI11 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics30 specimens↗
NCBIUS National Library of Medicinesequences↗
NPASSNat. Product Activity & Species Sourcecompounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Lactuca tatarica, known as blue lettuce, is a Eurasian flowering plant in the tribe Cichorieae within the family Asteraceae. It is widespread across much of Europe and Asia. Lactuca tatarica is an herb up to 60 cm (2 feet) tall with a large taproot. Most of the leaves are near the base of the plant and are larger than leaves farther up the stem. Each flower head has about 20 blue or purple (rarely white) ray flowers and no disc flowers. Some authors have placed the North American species Lactuca pulchella as a subspecies or variety of a broader concept of Lactuca tatarica, while others consider L. tatarica to occur only in Europe and Asia. Lactuca tatarica (with L. pulchella and others) is commonly separated into the genus Mulgedium, as Mulgedium tatarica.
No narrative description available for this taxon yet.
Size & morphology21
Life cycle & reproduction14
Diet & foraging2
Habitat & environment12
Physiology & chemistry5
Other traits1
Compounds documented for Lactuca tatarica across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds12 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (3aR,6S,6aR,9aS,9bR)-6a-hydroxy-6,9a-dimethyl-3-methylidene-4,5,6,7,8,9b-hexahydro-3aH-azuleno[8,7-b]furan-2,9-dione | present | NPASS | |
| (3aS,6R,9aR,9bS)-6,9a-dimethyl-3-methylidene-3a,4,5,6,8,9b-hexahydroazuleno[8,7-b]furan-2,9-dione | present | NPASS | |
| (3S,3aS,6S,6aR,9aR,9bR)-3,6,9a-trimethyl-3a,4,5,6,6a,9b-hexahydro-3H-azuleno[8,7-b]furan-2,9-dione | present | NPASS | |
| Ambrosin | present | NPASS | |
| Coronopilin | present | NPASS | |
| IFXGCKRDLITNAU-HRULWKHZSA-N | present | NPASS | |
| Ilicic Acid | present | NPASS | |
| N-[4-(diaminomethylidenecarbamoylamino)butyl]-N-methylacetamide | present | NPASS | |
| Neoambrosin | present | NPASS | |
| OYBKYXUMZIXQDT-PXKFQOSKSA-N | present | NPASS |
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 Lactuca tatarica has left across the world's sequence archives.
At a glance
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
The complete instruction manual Lactuca tatarica carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Chromosomes & ploidyhow the DNA is packaged
2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.
2n 1815×CCDB · slov-fl · CCDB · iapt · CCDB · fl-europaea +6
2n 92×CCDB · book-ipcn73-74
2n 161×CCDB · ipcn-api-dl
2n 271×CCDB · ipcn-api-dl
2n 341×CCDB · book-fedorov
n 96×CCDB · ipcn-api-dl · CCDB · book-ipcn73-74
n 171×CCDB · Cave1962
diploid inferred1×PloiDB · genus-scale
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
Record type9 652 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
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.
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions53 of 109 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Moscow State Universitylocation not on record | 321 |
| Yangling, CN | 137 |
| GMBAlocation not on record | 104 |
| WNNUlocation not on record | 60 |
| Lanzhou, CN | 56 |
| Tartu, EE | 39 |
| Beijing, CN | 38 |
| Urumqi, CN | 36 |
| LDlocation not on record | 35 |
| Karlsruhe, DE | 31 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 30 |
| Xining, CN | 30 |
| South Kensington, GB | 24 |
| Ernst-Moritz-Arndt-Universitat Greifswaldlocation not on record | 20 |
| Lincoln, US | 18 |
| Inner Mongolia Universitylocation not on record | 13 |
| Oskarshamn, SE | 13 |
| Academy of Sciences of the Republic of Uzbekistanlocation not on record | 13 |
| Provo, US | 11 |
| Görlitz, DE | 11 |
| Oulu, FI | 11 |
| NSMKlocation not on record | 10 |
| Berlin, DE | 10 |
| QAUlocation not on record | 10 |
| DOI/NPS, Colonial National Historical Parklocation not on record | 10 |
| Philadelphia, US | 9 |
| Herbarium of South China Botanical Gardenlocation not on record | 9 |
| Institute of Applied Ecology, Academia Sinicalocation not on record | 9 |
| Zhengzhou, CN | 8 |
| SLU Artdatabankenlocation not on record | 8 |
| GJOlocation not on record | 8 |
| University of Stellenboschlocation not on record | 7 |
| BRNUlocation not on record | 7 |
| Adam Mickiewicz University in Poznańlocation not on record | 6 |
| Tallinn, EE | 6 |
| Tula State Lev Tolstoy Pedagogical Universitylocation not on record | 6 |
| Wlocation not on record | 5 |
| J. Rusek Collectionlocation not on record | 5 |
| DBF-NHMDlocation not on record | 4 |
| Frankfurt am Main | 4 |
| Shanxi Universitylocation not on record | 4 |
| Awka, NG | 4 |
| Guangzhou, CN | 3 |
| Bratislava, SK | 3 |
| The Tula Region State Institution of Culture "Tula Museum Association"location not on record | 3 |
| Kuopio, FI | 3 |
| CASlocation not on record | 3 |
| Turku, FI | 3 |
| Salamanca, ES | 3 |
| DOI/NPS, Greenbelt Parklocation not on record | 3 |
| Natural History Museum Rotterdamlocation not on record | 3 |
| Riverside, US | 3 |
| Xian, CN | 3 |
| GZUlocation not on record | 3 |
| Logan, US | 3 |
| WINlocation not on record | 2 |
| Xinjiang Institute of Ecology and Geography, Chinese Academy of Scienceslocation not on record | 2 |
| Moscow, US | 2 |
| Albuquerque, US | 2 |
| Boise, US | 2 |
| MeiseBGlocation not on record | 2 |
| Uniwersytet Wrocławskilocation not on record | 2 |
| Nanjing, CN | 2 |
| NLD037location not on record | 2 |
| Uniwersytet Opolskilocation not on record | 2 |
| Nanjing, CN | 2 |
| Wuhan, CN | 2 |
| Uniwersytet Śląski w Katowicachlocation not on record | 1 |
| Anchorage, US | 1 |
| BClocation not on record | 1 |
| Helsinki, FI | 1 |
| “Manash Kozybayev North Kazakhstan University" NPLClocation not on record | 1 |
| San Luis Obispo, US | 1 |
| Hazara Universitylocation not on record | 1 |
| Chongqing Museumlocation not on record | 1 |
| Saint Louis, US | 1 |
| TUR-Alocation not on record | 1 |
| EL PASO, US | 1 |
| Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)location not on record | 1 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 1 |
| Jyväskylä, FI | 1 |
| AUAlocation not on record | 1 |
| Salzburg, AT | 1 |
| Mississippi State, US | 1 |
| Dresden, DE | 1 |
| Bronx, US | 1 |
| Tianjin Natural History Museumlocation not on record | 1 |
| Victoria, CA | 1 |
| Xiamen, CN | 1 |
| WTUlocation not on record | 1 |
| Peking Universitylocation not on record | 1 |
| Weber State Universitylocation not on record | 1 |
| TADlocation not on record | 1 |
| Kandalaksha State Nature Reservelocation not on record | 1 |
| Columbia, US | 1 |
| IWEP FEB RASlocation not on record | 1 |
| Vancouver, CA | 1 |
| Tacoma, US | 1 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 1 |
| Pocatello, US | 1 |
| Zhejiang Universitylocation not on record | 1 |
| Grand Junction, US | 1 |
| València, ES | 1 |
| Shenyang Agricultural Universitylocation not on record | 1 |
| Tromso University Museumlocation not on record | 1 |
| Phoenix, US | 1 |
| Uppsala, SE | 1 |
| ASUlocation not on record | 1 |
| Bandelier National Monumentlocation not on record | 1 |
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Where the DNA of Lactuca tatarica 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
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
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.