Lactuca pulchella

(Pursh) DC. · species

image placeholder — illustration coming later

Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca

At a glance

Occurrence records1 449

Data sources8

Biological traits9

DNA specimens0

eDNA detections4

Sources8 archives

Databases and archives Lactuca pulchella's data was compiled from.

WikipediaWikimedia Foundation2 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility1 449 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗

LOTUSNatural Products (Wikidata)compounds↗

CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗

PloiDBPloidy Databasegenome & karyotype

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page6 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements1 literature sources9 traits

Chemical compositionLOTUS19 compounds

Occurrence & distributionGBIF1 449 records

Environmental DNA1 datasets · 1 countries4 detections

Genome at a glanceCCDB2n = 18

01Narrative

Lactuca pulchella, known as blue lettuce, common blue lettuce, or wild blue lettuce, is a North American flowering plant in the sunflower family, Asteraceae. Some authors place it 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 pulchella (with L. tatarica and others) is commonly separated into the genus Mulgedium, as Mulgedium pulchellum.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesGIFT

Life cycle & reproduction2

Life spanbiennial

Raunkiær life formtherophyte

Diet & foraging1

Parasiteindependent

Habitat & environment5

Aquaticterrestrial

Climberself-supporting

Epiphyteterrestrial

Growth formherb

Woodinessnon-woody

Physiology & chemistry1

Photosynthetic pathwayC3

03Chemical composition19 compounds

Compounds documented for Lactuca pulchella across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").

Compound class profile5 classes

Guaiane sesquiterpenoids9

Germacrane sesquiterpenoids4

Eudesmane sesquiterpenoids3

Lanostane, Tirucallane and Euphane triterpenoids2

Ursane and Taraxastane triterpenoids1

Documented compounds19 total

Tissue Source Quantified only

Compound	Amount	Source
(3aS,6E,9R,10E,11aR)-6,10-dimethyl-3-methylidene-9-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3a,4,5,8,9,11a-hexahydrocyclodeca[b]furan-2-one	present	LOTUS
(3R,3aR,4S,9aS,9bR)-3,4-dihydroxy-9-(hydroxymethyl)-3,6-dimethyl-4,5,9a,9b-tetrahydro-3aH-azuleno[4,5-b]furan-2,7-dione	present	LOTUS
(3R,3aR,6E,9R,10E,11aR)-3,9-dihydroxy-3,6,10-trimethyl-3a,4,5,8,9,11a-hexahydrocyclodeca[b]furan-2-one	present	LOTUS
(3R,3aR,7R,9R,10E,11aR)-7-hydroperoxy-3,9-dihydroxy-3,10-dimethyl-6-methylidene-4,5,7,8,9,11a-hexahydro-3aH-cyclodeca[b]furan-2-one	present	LOTUS
(3S,3aS,5aR,6R,7R,9aS,9bS)-6,7-dihydroxy-3,5a,9-trimethyl-3,3a,4,5,6,7,9a,9b-octahydrobenzo[g][1]benzofuran-2-one	present	LOTUS
(3S,3aS,5aR,6R,9aS,9bS)-6-hydroxy-3,5a,9-trimethyl-3a,4,5,6,9a,9b-hexahydro-3H-benzo[g][1]benzofuran-2,7-dione	present	LOTUS
(3S,3aS,5aR,6S,9aS,9bS)-6-hydroxy-3,5a,9-trimethyl-3,3a,4,5,6,7,9a,9b-octahydrobenzo[g][1]benzofuran-2-one	present	LOTUS
(3S,3aS,6aR,8S,9aR,9bS)-3-methyl-6,9-dimethylidene-8-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3a,4,5,6a,7,8,9a,9b-octahydro-3H-azuleno[4,5-b]furan-2-one	present	LOTUS
(3S,3aS,6E,9R,10E,11aS)-3,6,10-trimethyl-9-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3a,4,5,8,9,11a-hexahydro-3H-cyclodeca[b]furan-2-one	present	LOTUS
(3S,4aR,6aR,6aR,6bR,8aR,9S,12R,12aS,14aR,14bR)-4,4,6a,6b,8a,11,12,14b-octamethyl-2,3,4a,5,6,6a,7,8,9,12,12a,13,14,14a-tetradecahydro-1H-picene-3,9-diol	present	LOTUS

05DNA & barcoding4 eDNA hits

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 pulchella has left across the world's sequence archives.

At a glance

eDNA detections4

Countries1

06Genome at a glanceCCDB

The complete instruction manual Lactuca pulchella 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.

Chromosomes2n = 18 n = 9

Ploidydiploid inferred

Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references

2n 181×CCDB · eflora

CCDB · eflora

Ploidy records — measured levels and diploid/polyploid inferences · click for sources

diploid inferred1×PloiDB · family-scale

PloiDB · family-scale — chromEvol; reliability=1.000 ↗

08Occurrence & distribution

Record type1 449 records

Wild obs. + sensor1 246

Museum / vouchered203

Range

Area of Occupancy AOO4 444 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 accuracy84% within 1 km

≤100 m 708≤1 km 125≤10 km 60>10 km 102

995 georeferenced · 251 without coordinates

Open the mapobservation + sensor1 246

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 accuracy28% within 1 km

≤100 m 11≤1 km 20≤10 km 68>10 km 12

111 georeferenced · 92 without coordinates

Open the institutions mapphysical evidence203

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 institutions31 of 44 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Moscow, US	35
Vancouver, CA	25
Chongqing Museumlocation not on record	19
Missoula, US	9
Flagstaff, US	8
Albuquerque, US	8
Bozeman, US	7
Bronx, US	6
Riverside, US	6
Bangkok, TH	5
Provo, US	5
WINlocation not on record	5
WTUlocation not on record	4
Madison, US	4
Tempe, US	4
Stockholm, SE	4
Grand Junction, US	3
Science Museum of Minnesotalocation not on record	3
Boise, US	3
Mexico City, MX	3
VALElocation not on record	2
University of Lethbridgelocation not on record	2
Cheney, US	2
Saint Louis, US	2
Richmond, US	1
Weber State Universitylocation not on record	1
DOI/NPS, Colonial National Historical Parklocation not on record	1
US	1
Paris, FR	1
Bend, US	1
Université Lavallocation not on record	1
Karlsruhe, DE	1
Davenport, US	1
Chapel Hill, US	1
New Haven, US	1
Phoenix, US	1
Museum of the Rockieslocation not on record	1
Burlington, US	1
University of Alberta Museumslocation not on record	1
GJOlocation not on record	1
New Mexico Museum of Natural History and Sciencelocation not on record	1
Philadelphia, US	1
Denton, US	1
Victoria, CA	1

44 institutions · 194 of 203 vouchered records shown · 9 without an institution code

09Environmental DNA4 detections

Where the DNA of Lactuca pulchella 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 surveys1

Countries1

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 4 detections have coordinates

Open the map1 country0

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 median8.60 °C -1.80–11.7

Seasonal swing summer↔winter41.0 °C

Max temp (day)14.1 °C 1.90–18.8

Min temp (night)5.20 °C -4.10–6.50

Precipitation54.0 mm/mo 45.6–54.7

Air humidity58.7 % 56.2–63.8

Moisture balance-9.00 mm/mo -62.0–-3.20

Vapour deficit464 Pa 308–607

Wind speed3.50 m/s 3.30–5.20

Cloud cover57.6 % 38.8–58.1

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.

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The Life Data · species page · narrative wired to read_model image placeholder · 3D tilt requires an http server (WebGL)

Lactuca pulchella

At a glance

Sources8 archives

Life cycle & reproduction2

Diet & foraging1

Habitat & environment5

Physiology & chemistry1

Compound class profile5 classes

Documented compounds19 total

At a glance

Chromosomes & ploidyhow the DNA is packaged

Record type1 449 records

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions31 of 44 geolocated

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type1 449 records