Trifolium nigrescens
Viv. · speciesAt a glance
Sources12 archives
Databases and archives Trifolium nigrescens's data was compiled from.
WikipediaWikimedia Foundation8 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility7 007 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics6 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & 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.
Trifolium nigrescens, the small white clover, is an annual species which is widespread around the Mediterranean, including north Africa, and the Middle East.
No narrative description available for this taxon yet.
Size & morphology4
Life cycle & reproduction26
Diet & foraging1
Habitat & environment24
Physiology & chemistry20
Uses & economy15
Other traits4
Compounds documented for Trifolium nigrescens across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile2 classes
Documented compounds4 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (-)-3-Hydroxy-9-methoxypterocarpan | present | LOTUS | |
| 9-ethoxy-6a,11a-dihydro-6H-[1]benzofuro[3,2-c]chromen-3-ol | present | LOTUS | |
| Isolinamarin | present | LOTUS | |
| Medicarpin | present | LOTUS |
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 Trifolium nigrescens 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 Trifolium nigrescens 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 1632×GoaT · Kew Plant DNA C-values Database · CCDB · ita-fl · CCDB · iber-fl +9
2n 242×CCDB · book-ipcn67-71
2n 321×CCDB · CromoCat 2015
n 81×CCDB · CromoCat 2015
diploid1×GoaT · Kew Plant DNA C-values Database
diploid inferred1×PloiDB · genus-scale
Record type7 007 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 institutions36 of 69 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 | 573 |
| LDlocation not on record | 72 |
| BDBClocation not on record | 36 |
| BClocation not on record | 24 |
| Jena Microbial Resource Collectionlocation not on record | 22 |
| Museo Entomologico de Leonlocation not on record | 21 |
| Barcelona, ES | 17 |
| Wlocation not on record | 16 |
| UIBlocation not on record | 16 |
| Institut und Museum fuer Geologie und Palaeontologielocation not on record | 13 |
| MAlocation not on record | 12 |
| BRNUlocation not on record | 12 |
| Mount Annan, AU | 7 |
| Tuscaloosa, US | 7 |
| Bern, CH | 6 |
| Tall Timbers Research Stationlocation not on record | 6 |
| Badajoz, ES | 5 |
| BAYLUlocation not on record | 4 |
| CICYTEXlocation not on record | 4 |
| MeiseBGlocation not on record | 4 |
| Adelaide, AU | 4 |
| EL PASO, US | 4 |
| Tampa, US | 3 |
| Kew, GB | 3 |
| Rishon Le Zion, IL | 3 |
| Canberra, AU | 3 |
| Jackson, US | 3 |
| Miami, US | 3 |
| AUAlocation not on record | 3 |
| Saint Louis, US | 2 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 2 |
| Canadian Department of Agriculturelocation not on record | 2 |
| Provincia di Livornolocation not on record | 2 |
| ASUlocation not on record | 2 |
| Austin, US | 2 |
| Riverside, US | 2 |
| Sevilla, ES | 2 |
| College of the Atlantic, Museumlocation not on record | 2 |
| Bourges, FR | 2 |
| JBSlocation not on record | 2 |
| Salamanca, ES | 2 |
| Bronx, US | 2 |
| Durham, US | 2 |
| Monastir, TN | 1 |
| Knoxville, US | 1 |
| GJOlocation not on record | 1 |
| València, ES | 1 |
| University of Patraslocation not on record | 1 |
| Entomological Society of Latvialocation not on record | 1 |
| Clemson, US | 1 |
| Stockholm, SE | 1 |
| BIO-UNIPIlocation not on record | 1 |
| Little Rock, US | 1 |
| Moscow State Universitylocation not on record | 1 |
| PUC-RSlocation not on record | 1 |
| Brisbane, AU | 1 |
| ESP010location not on record | 1 |
| sonstHerblocation not on record | 1 |
| University of Southern Mississippilocation not on record | 1 |
| GZUlocation not on record | 1 |
| Uppsala, SE | 1 |
| Wuzhou, CN | 1 |
| Bloomington, US | 1 |
| Minia, EG | 1 |
| Oskarshamn, SE | 1 |
| Chongqing Museumlocation not on record | 1 |
| Bangkok, TH | 1 |
| ISAlocation not on record | 1 |
| Brussel, BE | 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 Trifolium nigrescens 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?
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.