Asclepias verticillata, the whorled milkweed, eastern whorled milkweed, or horsetail milkweed, is a species of milkweed native to most of eastern North America and parts of western Canada and the United States.
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 Asclepias verticillata has left across the world's sequence archives.
At a glance
DNA specimens13
Marker genes4
GenBank sequences10
eDNA detections5
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.
★matK5★rbcL5★rbcLa★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualAsclepias verticillata 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
Genome size327 630 000 bp
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).
BACTERIUM Carsonella ruddii0.00016 Gb
FUNGUS0.04 Gb
INSECT0.25 Gb
THIS GENOME Asclepias verticillata0.33 Gb
HUMAN3.2 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
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 = 22 n = 11
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 221×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Love, A. & D. Love. 1982. In: IOPB chromosome number reports LXXVI. Taxon 31: 583–587.
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy84% within 1 km
≤100 m 4 548≤1 km 884≤10 km 239>10 km 822
6 493 georeferenced · 1 516 without coordinates
Open the mapobservation + sensor8 009
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 accuracy35% within 1 km
≤100 m 110≤1 km 528≤10 km 952>10 km 242
1 832 georeferenced · 1 010 without coordinates
Open the institutions mapphysical evidence2 842
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy
no georeferenced coordinates · 3 records without
Open the mapnot free-living3
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 institutions90 of 139 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Wuzhou, CN
372
Madison, US
301
St. Paul, US
241
Chicago, US
201
Philadelphia, US
105
Saint Louis, US
104
Bronx, US
99
Bloomington, US
92
Fort Worth, US
92
Austin, US
72
Tampa, US
62
Chongqing Museumlocation not on record
49
New Haven, US
43
James F. Matthews Center for Biodiversity Studieslocation not on record
43
Jena Microbial Resource Collectionlocation not on record
39
Bangkok, TH
36
University of Stellenboschlocation not on record
36
Green Bay, US
31
Miami, US
30
Ann Arbor, US
30
Dekalb, US
26
Jackson, US
25
Chapel Hill, US
24
Chadron, US
23
Pittsburg, US
21
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
20
WINlocation not on record
20
Lincoln, US
18
Williamsburg, US
18
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
18
Spearfish, US
18
Lubbock, US
17
Brookings, US
17
Whitewater, US
16
Emporia, US
16
College Park, US
14
Mississippi State, US
14
Museum of the Rockieslocation not on record
13
Tuscaloosa, US
13
Logan, US
13
Davenport, US
13
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
12
Tall Timbers Research Stationlocation not on record
12
Missoula, US
11
AUAlocation not on record
10
Fayetteville, US
10
Burlington, US
10
Knoxville, US
9
University of Wisconsinlocation not on record
9
Millersville, US
9
US
8
Columbia, US
8
Valdosta State Universitylocation not on record
8
Chicago, US
8
GAlocation not on record
7
Bozeman, US
7
Springfield, US
7
Western Carolina Universitylocation not on record
6
Flagstaff, US
6
Maryland Department of Natural Resourceslocation not on record
6
EL PASO, US
5
Waverly, US
5
University of Southern Mississippilocation not on record
5
Denver, US
5
McWane Science Centerlocation not on record
5
Tempe, US
4
Claremont, US
4
Clemson, US
4
Little Rock, US
4
Edmonton, CA
4
US
4
GB
4
Chicago, US
3
Longwood Universitylocation not on record
3
Norfolk, US
3
Ypsilanti, US
3
University of Wisconsinlocation not on record
3
Columbus State Universitylocation not on record
3
Henderson State Universitylocation not on record
2
BAYLUlocation not on record
2
DULlocation not on record
2
Oskarshamn, SE
2
Appalachian State Universitylocation not on record
2
San Angelo, US
2
Hamilton, US
2
Provo, US
2
Riverside, US
2
Jefferson City, US
2
Kirksville, US
2
Phoenix, US
2
Whitehorse, CA
2
LINUlocation not on record
2
University of Alberta Museumslocation not on record
2
Boise, US
2
Northridge, US
2
Beijing, CN
2
San Jose State University, Museum of Birds and Mammalslocation not on record
2
Durango, MX
2
Research Collection of B. A. Bennettlocation not on record
2
DOI/NPS, Colonial National Historical Parklocation not on record
2
Moscow State Universitylocation not on record
1
Cincinnati, US
1
San Luis Obispo, US
1
Asheville, US
1
Fargo, US
1
San Jose, US
1
Conway, US
1
University of Tennessee at Chattanoogalocation not on record
1
University of North Carolina at Pembrokelocation not on record
1
Turlock, US
1
University of South Dakotalocation not on record
1
Fairfax, US
1
Museo Nacional de Costa Rica (MNCR)location not on record
1
DOI/NPS, Greenbelt Parklocation not on record
1
Riyadh Municipalitylocation not on record
1
Long Beach, US
1
University of South Carolina Salkehatchielocation not on record
1
Kew, GB
1
Shanghai Chenshan Botanical Gardenlocation not on record
1
Kingston, US
1
Morgantown, US
1
DOI/NPS, Selma to Montgomery National Historic Traillocation not on record
1
North Carolina Museum of Natural Scienceslocation not on record
1
Texas Lutheran Universitylocation not on record
1
Paris, FR
1
Pocatello, US
1
Canadian Department of Agriculturelocation not on record
1
Due West, US
1
ASUlocation not on record
1
University of New Hampshirelocation not on record
1
Moscow, US
1
Santa Barbara, US
1
Clarksville, US
1
Universidade Federal de Juiz de Foralocation not on record
1
Weber State Universitylocation not on record
1
Toronto, CA
1
Lord Fairfax Community Collegelocation not on record
1
Pomona Collegelocation not on record
1
Corvallis, US
1
139 institutions · 2 772 of 2 842 vouchered records shown · 70 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA5 detections
Where the DNA of Asclepias verticillata 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 found5
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 5 detections have coordinates
Open the map2 countries0
Typical agricultural roadside weedy associat…
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 median26.4 °C 18.1–27.1
Seasonal swing summer↔winter20.1 °C
Max temp (day)31.8 °C 23.0–32.6
Min temp (night)21.5 °C 14.5–22.9
Precipitation101 mm/mo 84.5–125
Air humidity60.0 % 57.9–60.4
Moisture balance-44.7 mm/mo -73.0–-29.0
Vapour deficit1,388 Pa 856–1,446
Wind speed2.70 m/s 2.00–3.70
Cloud cover31.5 % 26.5–43.2
CHELSA 1981–2010, ~9 km grid, at location & month of 5 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 Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility10 857 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI5 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics13 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↗