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 Asclepias purpurascens has left across the world's sequence archives.
At a glance
DNA specimens4
Marker genes5
GenBank sequences7
eDNA detections3
Countries1
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★rbcL5★rbcLa★ITS1★ITS2
plant barcodefungal barcode
08Occurrence & distribution
Record type3 386 records
Wild obs. + sensor2 613
Museum / vouchered773
Origin
Native10
Range
Area of Occupancy AOO8 784 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 accuracy78% within 1 km
≤100 m 1 453≤1 km 273≤10 km 95>10 km 403
2 224 georeferenced · 389 without coordinates
Open the mapobservation + sensor2 613
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 accuracy36% within 1 km
≤100 m 17≤1 km 176≤10 km 303>10 km 34
530 georeferenced · 243 without coordinates
Open the institutions mapphysical evidence773
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 institutions54 of 65 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Philadelphia, US
190
Saint Louis, US
73
Chicago, US
72
Wuzhou, CN
66
Bronx, US
49
Bloomington, US
48
St. Paul, US
25
Chongqing Museumlocation not on record
21
New Haven, US
21
University of Stellenboschlocation not on record
20
Allentown, US
16
Madison, US
13
Knoxville, US
11
Davenport, US
10
Fayetteville, US
8
Little Rock, US
8
Chapel Hill, US
8
Pittsburg, US
7
Burlington, US
6
Tampa, US
5
GB
5
Emporia, US
5
Millersville, US
5
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
5
DOI/NPS, Selma to Montgomery National Historic Traillocation not on record
4
Jefferson City, US
3
Fort Worth, US
3
Denver, US
3
Edmonton, CA
3
Dekalb, US
3
Museum of the Rockieslocation not on record
2
Fairfax, US
2
San Francisco, US
2
Austin, US
2
Springfield, US
2
Oklahoma State Universitylocation not on record
2
Chicago, US
2
Canadian Museum of Nature, National Herbarium of Canadalocation not on record
2
Riverside, US
2
Conway, US
1
Philadelphia, US
1
New Brunswick, US
1
Norfolk, US
1
Whitewater, US
1
Logan, US
1
Fredericksburg, US
1
Harrisonburg, US
1
Chicago, US
1
Flagstaff, US
1
San Angelo, US
1
The University of Arizonalocation not on record
1
Northridge, US
1
Mississippi State, US
1
Kirksville, US
1
Pullman, US
1
Appalachian State Universitylocation not on record
1
LINUlocation not on record
1
Oswego, US
1
Russellville, US
1
Turlock, US
1
Bangkok, TH
1
University of New Hampshirelocation not on record
1
Morgantown, US
1
Miami, US
1
US
1
65 institutions · 760 of 773 vouchered records shown · 13 without an institution code
09Environmental DNA3 detections
Where the DNA of Asclepias purpurascens 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
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 3 detections have coordinates
Open the map1 country0
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 median21.0 °C 21.0–21.0
Seasonal swing summer↔winter27.0 °C
Max temp (day)25.7 °C
Min temp (night)16.7 °C
Precipitation93.3 mm/mo
Air humidity57.0 %
Moisture balance-65.8 mm/mo
Vapour deficit1,063 Pa
Wind speed3.30 m/s
Cloud cover40.0 %
CHELSA 1981–2010, ~9 km grid, at location & month of 2 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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility3 386 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics4 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
Paleobiology DatabasePBDB consortiumfossil record↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗