Lepidium draba
speciesAt a glance
Sources15 archives
Databases and archives Lepidium draba's data was compiled from.
WikipediaWikimedia Foundation12 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility101 375 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI17 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics29 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
Paleobiology DatabasePBDB consortiumfossil record↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Lepidium draba, the whitetop or hoary cress, or Thanet cress, is a rhizomatous perennial flowering plant in the family Brassicaceae. It is native to western Asia and southeastern Europe and widely introduced elsewhere.
No narrative description available for this taxon yet.
Size & morphology24
Life cycle & reproduction15
Diet & foraging2
Habitat & environment14
Physiology & chemistry6
Other traits3
Compounds documented for Lepidium draba across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds131 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (+)-1(10),4-Cadinadiene | present | NPASS | |
| (+)-2-Pentanol | present | NPASS | |
| (+)-3-Carene | present | NPASS | |
| (+)-alpha-Pinene | present | NPASS | |
| (+)-Perillyl alcohol | present | NPASS | |
| (+)-Ursolic Acid | present | NPASS | |
| (-)-beta-Pinene | present | NPASS | |
| (-)-Borneol | present | NPASS | |
| (-)-Camphene | present | NPASS | |
| (1,1'-Biphenyl)-2-ol | 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 Lepidium draba 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 Lepidium draba 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.
Genome sizehow big the whole instruction manual is
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
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 6435×GoaT · Kew Plant DNA C-values Database · CCDB · ita-fl · CCDB · slov-fl +10
2n 805×CCDB · nw-europe-fl · CCDB · book-fedorov · CCDB · brass +1
2n 624×CCDB · ipcn-api-dl · CCDB · brass
2n 482×CCDB · book-ipcn67-71 · CCDB · brass
n 163×CCDB · ipcn-api-dl · CCDB · brass
n 243×CCDB · ipcn-api-dl · CCDB · brass
n 322×CCDB · ipcn-api-dl · CCDB · brass
n 641×CCDB · brass
octoploid1×GoaT · Kew Plant DNA C-values Database
polyploid 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 type101 375 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.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions128 of 202 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Berlin, DE | 321 |
| LDlocation not on record | 288 |
| Moscow State Universitylocation not on record | 245 |
| MeiseBGlocation not on record | 232 |
| Helsinki, FI | 156 |
| Zürich, CH | 149 |
| Olocation not on record | 149 |
| BFLlocation not on record | 147 |
| Wuzhou, CN | 108 |
| Zürich, CH | 92 |
| Adelaide, AU | 82 |
| Museo Entomologico de Leonlocation not on record | 79 |
| Uppsala, SE | 73 |
| Turku, FI | 50 |
| Görlitz, DE | 49 |
| SLU Artdatabankenlocation not on record | 48 |
| Oulu, FI | 48 |
| Mount Annan, AU | 46 |
| Trondheim, NO | 45 |
| Oskarshamn, SE | 44 |
| Wlocation not on record | 43 |
| Christchurch, NZ | 40 |
| Canberra, AU | 36 |
| Bergen, NO | 36 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 35 |
| València, ES | 34 |
| UniKSlocation not on record | 34 |
| BRNUlocation not on record | 33 |
| Hobart, AU | 31 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 31 |
| Uniwersytet Wrocławskilocation not on record | 30 |
| Riverside, US | 29 |
| Pullman, US | 29 |
| Bloomington, US | 28 |
| Davis, US | 28 |
| Brisbane, AU | 27 |
| BClocation not on record | 27 |
| Moscow, US | 26 |
| Santa Barbara, US | 26 |
| GJOlocation not on record | 26 |
| Chongqing Museumlocation not on record | 25 |
| Brussel, BE | 25 |
| San Diego, US | 25 |
| BDBClocation not on record | 24 |
| South Kensington, GB | 23 |
| Chadron, US | 22 |
| Adam Mickiewicz University in Poznańlocation not on record | 21 |
| Claremont, US | 20 |
| Mlocation not on record | 20 |
| Dresden, DE | 20 |
| Saint Louis, US | 19 |
| Philadelphia, US | 19 |
| DBF-NHMDlocation not on record | 17 |
| San Luis Obispo, US | 17 |
| KMNlocation not on record | 17 |
| Kew, GB | 15 |
| Kuopio, FI | 15 |
| Denver, US | 15 |
| Corvallis, US | 15 |
| Natural History Museum Rotterdamlocation not on record | 15 |
| CASlocation not on record | 14 |
| Caldwell, US | 13 |
| Tula State Lev Tolstoy Pedagogical Universitylocation not on record | 13 |
| Kensington, AU | 13 |
| BSBIlocation not on record | 12 |
| Academy of Sciences of the Republic of Uzbekistanlocation not on record | 11 |
| Institut und Museum fuer Geologie und Palaeontologielocation not on record | 11 |
| Flagstaff, US | 11 |
| Frankfurt am Main | 11 |
| Winterthur, CH | 11 |
| New Haven, US | 10 |
| ASUlocation not on record | 10 |
| Pocatello, US | 9 |
| TUR-Alocation not on record | 9 |
| Alicante, ES | 9 |
| San Isidro, AR | 9 |
| Provincia di Livornolocation not on record | 9 |
| Córdoba, AR | 9 |
| Nagano City, JP | 9 |
| Porvoo, FI | 8 |
| WTUlocation not on record | 8 |
| Logan, US | 8 |
| DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record | 8 |
| Edinburgh, GB | 7 |
| GZUlocation not on record | 7 |
| Paris, FR | 7 |
| Orem, US | 7 |
| Spearfish, US | 7 |
| Canadian Department of Agriculturelocation not on record | 6 |
| Castelar, AR | 6 |
| Tilburg, NL | 6 |
| Fulda, DE | 6 |
| Tampa, US | 6 |
| Los Angeles, US | 6 |
| EL PASO, US | 6 |
| Armidale, AU | 6 |
| US | 5 |
| MAlocation not on record | 5 |
| Philadelphia, US | 5 |
| Northridge, US | 5 |
| Phoenix, US | 4 |
| Parkville, AU | 4 |
| NMBU:MINAlocation not on record | 4 |
| Provo, US | 4 |
| Emporia, US | 4 |
| Durham, US | 4 |
| Eastern Nevada Landscape Coalitionlocation not on record | 4 |
| Beijing, CN | 4 |
| Nijmegen, NL | 4 |
| Shinshu Universitylocation not on record | 4 |
| QVMAGlocation not on record | 4 |
| Ann Arbor, US | 4 |
| Albuquerque, US | 4 |
| Missoula, US | 4 |
| University of Stellenboschlocation not on record | 4 |
| Boise, US | 4 |
| Bangkok, TH | 3 |
| PrivatHerblocation not on record | 3 |
| Pittsburg, US | 3 |
| St. Paul, US | 3 |
| Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)location not on record | 3 |
| AUAlocation not on record | 3 |
| Fullerton, US | 3 |
| Salzburg, AT | 3 |
| Bend, US | 3 |
| Tomioka, JP | 3 |
| FLADlocation not on record | 3 |
| Rotorua, NZ | 3 |
| Dekalb, US | 3 |
| Madison, US | 3 |
| Naturalis Biodiversity Centerlocation not on record | 2 |
| Whitehorse, CA | 2 |
| Ciudad Autónoma de Buenos Aires, AR | 2 |
| John T. Waterhouse Herbariumlocation not on record | 2 |
| San Jose, US | 2 |
| Musée des Confluenceslocation not on record | 2 |
| Santa Cruz, US | 2 |
| Stockholm, SE | 2 |
| Toyama, JP | 2 |
| Government College University Lahore, Dr. Sultan Ahmad Herbariumlocation not on record | 2 |
| Cheney, US | 2 |
| Buenos Aires, AR | 2 |
| The Tula Region State Institution of Culture "Tula Museum Association"location not on record | 2 |
| Durango, US | 2 |
| Bronx, US | 2 |
| Palmerston North, NZ | 2 |
| Vancouver, CA | 2 |
| Wellington, NZ | 2 |
| Pamplona, ES | 2 |
| Burlington, US | 2 |
| Podgorica, ME | 2 |
| Uniwersytet Opolskilocation not on record | 2 |
| Mexico City, MX | 2 |
| STNFlocation not on record | 2 |
| Porrentruy, CH | 2 |
| Jyväskylä, FI | 2 |
| USFSlocation not on record | 2 |
| Herbario Universidad de Concepciónlocation not on record | 2 |
| Mendoza, AR | 2 |
| Sion, CH | 2 |
| Royal Botanic Gardens, Kewlocation not on record | 1 |
| Coimbra, PT | 1 |
| Palmerston, AU | 1 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 1 |
| Grand Junction, US | 1 |
| Severin-McDaniel Insect Collectionlocation not on record | 1 |
| College Park, US | 1 |
| Auckland, NZ | 1 |
| Smithfield, AU | 1 |
| Toronto, CA | 1 |
| SNSNMClocation not on record | 1 |
| H-Schuhwlocation not on record | 1 |
| Istituto Agrario Castelnuovolocation not on record | 1 |
| Corrientes, AR | 1 |
| Monastir, TN | 1 |
| KNFSClocation not on record | 1 |
| Norfolk, US | 1 |
| Sagamihara, JP | 1 |
| San Diego Natural History Museum, Herbariumlocation not on record | 1 |
| San Francisco, US | 1 |
| Irvine, US | 1 |
| Mexico City, MX | 1 |
| H-AkrKGlocation not on record | 1 |
| TADlocation not on record | 1 |
| Karlsruhe, DE | 1 |
| Tartu, EE | 1 |
| University of New Hampshirelocation not on record | 1 |
| PHlocation not on record | 1 |
| SEINetlocation not on record | 1 |
| The State Museum-Preserve "The Kulikovo pole"location not on record | 1 |
| TROMlocation not on record | 1 |
| Tromso University Museumlocation not on record | 1 |
| San Angelo, US | 1 |
| John May Museum of Natural Historylocation not on record | 1 |
| Weber State Universitylocation not on record | 1 |
| Chicago, US | 1 |
| OLAlocation not on record | 1 |
| Herbarium of South China Botanical Gardenlocation not on record | 1 |
| Cape Town, ZA | 1 |
| DOI/NPS, Greenbelt Parklocation not on record | 1 |
| US | 1 |
| Long Beach, US | 1 |
Where the DNA of Lepidium draba 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.