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 Arisaema macrospathum has left across the world's sequence archives.
At a glance
DNA specimens2
Marker genes2
eDNA detections2
Marker genes sequenced
★ 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.
★matK★rbcL
plant barcode
06Genome at a glanceCCDB
The complete instruction manualArisaema macrospathum 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.
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 origin10.5 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 type480 records
Wild obs. + sensor111
Museum / vouchered369
Range
Area of Occupancy AOO1 284 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 accuracy76% within 1 km
≤100 m 38≤1 km 22≤10 km 16>10 km 3
79 georeferenced · 32 without coordinates
Open the mapobservation + sensor111
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 accuracy87% within 1 km
≤100 m 163≤1 km 5≤10 km 24>10 km 1
193 georeferenced · 176 without coordinates
Open the institutions mapphysical evidence369
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 institutions27 of 45 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Durango, MX
90
Saint Louis, US
37
Mexico City, MX
33
Ann Arbor, US
24
Mexico City, MX
22
IEBlocation not on record
21
Ciudad de México, MX
12
Autlán de Navarro, MX
10
Austin, US
10
Ciudad de México, MX
10
Toluca, MX
8
Madison, US
8
Chapingo, MX
8
IBUGlocation not on record
7
Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Moreloslocation not on record
5
Juriquilla, MX
4
University of Stellenboschlocation not on record
4
Giardini Botanici Hanburylocation not on record
3
MEXUlocation not on record
3
Chicago, US
3
CHAPAlocation not on record
3
CHAPlocation not on record
2
Cornell Universitylocation not on record
2
GB
2
Cambridge, US
2
ASUlocation not on record
2
Fort Worth, US
2
Guasave, MX
2
Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record
2
Riverside, US
1
Tampa, US
1
Chongqing Museumlocation not on record
1
Tlalnepantla, MX
1
Philadelphia, US
1
Kew, GB
1
DIVEA, DEP, FEEMAlocation not on record
1
BMlocation not on record
1
XALlocation not on record
1
Universidad de Autonoma de Baja Californialocation not on record
1
Harvard Universitylocation not on record
1
Austin, US
1
Bronx, US
1
La Paz, MX
1
Cambridge, US
1
University of Zhejianglocation not on record
1
45 institutions · 357 of 369 vouchered records shown · 12 without an institution code
09Environmental DNA2 detections
Where the DNA of Arisaema macrospathum 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 found2
Studies independent surveys1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 2 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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility480 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics2 specimens↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype