Lactuca raddeana

Maxim. · species

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Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Lactuca

At a glance

Occurrence records797

Data sources8

Biological traits21

DNA specimens0

eDNA detections3

Sources8 archives

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

WikipediaWikimedia Foundation3 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility797 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗

GRIN TaxonomyUSDA-ARSdistribution & uses↗

Open Tree of LifeOpenTreephylogeny backbone↗

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

PloiDBPloidy Databasegenome & karyotype

On this page5 sections

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

NarrativeWikipediaarticle

Traits & measurements3 literature sources21 traits

Occurrence & distributionGBIF797 records

Environmental DNA1 datasets · 0 countries3 detections

Genome at a glanceCCDB2n = 18

01Narrative

Lactuca raddeana is a species of wild lettuce native to Vietnam, eastern China, the Korean peninsula, the Russian Far East, Sakhalin, the Kuril Islands, and Japan. A biennial or perennial, growing to 2m, it has a very wide range of variation in leaf shape, across a spectrum from undivided leaves to pinnatipartite leaves. It is edible but bitter.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPGIFTTRY

Size & morphology8

Leaf length80 mm

Leaf length max110 mm

Leaf length min50 mm

Leaf width55 mm

Leaf width max85 mm

Leaf width min20 mm

Plant height max2 m

Plant height min0.65 m

Life cycle & reproduction5

Flowering endSep

Flowering startJun

Life formperennial

Life spanbiennial

Raunkiær life formtherophyte

Habitat & environment8

Climatetemperate

Climberself-supporting

Elevation max2 240 m

Elevation mean1 310 m

Elevation min380 m

Growth formherb

Habitat GIFTcut-over forest, forest, meadows, shrubberies

Woodinessnon-woody

05DNA & barcoding3 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 raddeana has left across the world's sequence archives.

At a glance

eDNA detections3

06Genome at a glanceCCDB

The complete instruction manual Lactuca raddeana 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 records18–182n range18median18mode11records

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

2n 1811×CCDB · iapt · CCDB · ipcn-api-dl · CCDB · book-ipcn66 +3

CCDB · iapt

CCDB · ipcn-api-dl — Nishikawa, T. 1980. Chromosome counts of flowering plants of Hokkaido (4). Rep. Taisetsuzan Inst. Sci. 15: 23–28.

CCDB · ipcn-api-dl — Probatova, N. S., V. Y. Barkalov, E. G. Rudyka & S. A. Shatalova. 2000. Chromosome study on vascular plants of the Kurile Islands. Nat. Hist. Res. Spec. Issue 7: 21–38.

CCDB · book-ipcn66 — Sokolovskaya 1966

CCDB · eflora

CCDB · book-fedorov — Ishikawa 1921

CCDB · book-fedorov — Thompson R. C. et al. 1941

CCDB · book-fedorov — Nisioka 1956

CCDB · book-fedorov — CoKOHoBcKaH 1966

CCDB · book-atlas-flowering-plants — Japan

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

diploid inferred1×PloiDB · genus-scale

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

08Occurrence & distribution

Record type797 records

Wild obs. + sensor493

Museum / vouchered304

Origin

Native1

Range

Area of Occupancy AOO2 288 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 accuracy70% within 1 km

≤100 m 19≤1 km 12≤10 km 9>10 km 4

44 georeferenced · 449 without coordinates

Open the mapobservation + sensor493

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 accuracy19% within 1 km

≤1 km 11≤10 km 44>10 km 3

58 georeferenced · 246 without coordinates

Open the institutions mapphysical evidence304

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 institutions19 of 36 geolocated

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

Institution	Specimens
Institute of Applied Ecology, Academia Sinicalocation not on record	35
Moscow State Universitylocation not on record	28
KR	26
NSMKlocation not on record	22
National Institute of Biological Resourceslocation not on record	20
Yangling, CN	17
Servico de Microbiologia e Imunologialocation not on record	17
Herbarium of the Department of Botany, University of Tokyolocation not on record	16
Zhengzhou, CN	13
Elocation not on record	11
Shanghai, CN	10
Beijing, CN	9
Nanjing, CN	8
Kyoto Universitylocation not on record	8
Chengdu, CN	6
Nanjing, CN	6
Kagoshima, JP	6
Lanzhou, CN	5
Cambridge, US	4
Zhejiang Universitylocation not on record	4
Wuhan, CN	4
Berlin, DE	4
Guangzhou, CN	2
SJNAlocation not on record	2
Tsukuba, JP	2
Korea National Arboretumlocation not on record	2
Wuhan, CN	2
IWEP FEB RASlocation not on record	2
Hangzhou, CN	1
University of Stellenboschlocation not on record	1
Guilin, CN	1
ENTClocation not on record	1
KNAMlocation not on record	1
KIWElocation not on record	1
Xian, CN	1
DNSMlocation not on record	1

36 institutions · 299 of 304 vouchered records shown · 5 without an institution code

09Environmental DNA3 detections

Where the DNA of Lactuca raddeana 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 found3

Studies independent surveys1

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

Where its DNA was found

0 of 3 detections have coordinates

Open the map0 countries0

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.

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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