Celtis africana, the white stinkwood, is a deciduous tree in the family Cannabaceae. Its habit ranges from a tall tree in forest to a medium-sized tree in bushveld and open country, and a shrub on rocky soil. It occurs in Yemen and over large parts of Africa south of the Sahara. It is a common tree in the south and east of southern Africa, where the odour given off by freshly-cut green timber is similar to that of Ocotea bullata or Black Stinkwood.
No narrative description available for this taxon yet.
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 Celtis africana has left across the world's sequence archives.
At a glance
DNA specimens6
Marker genes5
GenBank sequences8
eDNA detections4
Countries2
The DNA barcodea real sequence read deposited for this species
★ 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.
★matK1★rbcL3★rbcLa★ITS4★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualCeltis africana 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 = 20 n = 10
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 201×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Morawetz, W. & M. R. A. Samuel. 1989. Karyological patterns in the Hamamelidae. Syst. Assoc. Special Vol. 40(2): 131–135.
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
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
DNA clock origin3.39 Ma TimeTree
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.
DNA clock origin
08Occurrence & distribution
Record type2 117 records
Wild obs. + sensor1 299
Museum / vouchered804
Other14
Origin
Native89
Range
Area of Occupancy AOO4 540 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 accuracy94% within 1 km
≤100 m 805≤1 km 142≤10 km 36>10 km 24
1 007 georeferenced · 292 without coordinates
Open the mapobservation + sensor1 299
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 accuracy69% within 1 km
≤1 km 11≤10 km 5
16 georeferenced · 788 without coordinates
Open the institutions mapphysical evidence804
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 institutions21 of 62 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Pretoria, ZA
272
Saint Louis, US
60
Durban, ZA
46
Kew, GB
45
WAGlocation not on record
36
MeiseBGlocation not on record
24
TAFORI-LSRClocation not on record
21
Arusha, TZ
16
Clocation not on record
16
Embrapa Agrobiology Diazothrophic Microbial Culture Collectionlocation not on record
12
Addis Ababa, ET
11
MAlocation not on record
8
Berlin, DE
8
Haramaya Universitylocation not on record
8
Uppsala, SE
8
Instituto de Investigação Científica Tropicallocation not on record
6
Bronx, US
6
Plocation not on record
6
Glocation not on record
4
Stockholm, SE
4
Elocation not on record
4
Edinburgh, GB
4
EAlocation not on record
4
Rotorua, NZ
4
CJBGlocation not on record
4
DSMlocation not on record
4
Mlocation not on record
4
FTlocation not on record
3
Cape Town, ZA
3
BRLUlocation not on record
3
Senckenberg Gesellschaft für Naturforschung: Senckenberg Forschungsinstitut und Naturmuseumlocation not on record
2
National Herbarium & Botanic Gardens of Malawilocation not on record
2
Moscow State Universitylocation not on record
2
BMlocation not on record
2
Paris, FR
2
Yaoundé, CM
2
South Kensington, GB
2
Wlocation not on record
2
University of Stellenboschlocation not on record
2
Coimbra, PT
2
Chongqing Museumlocation not on record
2
BClocation not on record
1
LISClocation not on record
1
University of Johannesburg, Department of Botany and Plant Biotechnologylocation not on record
1
University of Oxfordlocation not on record
1
Agricultural Research Centerlocation not on record
1
LNBG$location not on record
1
Helsinki, FI
1
University of Zimbabwelocation not on record
1
Singapore Botanic Gardenslocation not on record
1
University of Hamburglocation not on record
1
North Carolina Zoological Parklocation not on record
1
Aarhus, DK
1
Olocation not on record
1
Silvicultural Research Stationlocation not on record
1
Provo, US
1
Ulocation not on record
1
GRAlocation not on record
1
PRAlocation not on record
1
University of Johannesburglocation not on record
1
GHPG$location not on record
1
Montpellier, FR
1
62 institutions · 697 of 804 vouchered records shown · 106 without an institution code
09Environmental DNA4 detections
Where the DNA of Celtis africana 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
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 4 detections have coordinates
Open the map2 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.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median22.1 °C 19.2–25.1
Seasonal swing summer↔winter11.5 °C
Max temp (day)27.4 °C 24.6–30.2
Min temp (night)15.4 °C 13.3–18.9
Precipitation90.0 mm/mo 34.6–104
Air humidity54.6 % 41.0–58.9
Moisture balance-67.1 mm/mo -149–-38.4
Vapour deficit1,185 Pa 982–2,005
Wind speed2.80 m/s 1.70–4.50
Cloud cover27.3 % 15.7–40.2
CHELSA 1981–2010, ~9 km grid, at location & month of 4 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.
WikipediaWikimedia Foundation5 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 117 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics6 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗