Asclepias fascicularis is a species of milkweed known by the common names narrowleaf milkweed and Mexican whorled milkweed. It is a perennial herb that grows in a variety of habitats.
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 fascicularis has left across the world's sequence archives.
At a glance
DNA specimens3
Marker genes3
GenBank sequences1
eDNA detections2
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.
★matK★rbcLa★ITS1
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualAsclepias fascicularis 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 = 22 n = 11
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
n 111×CCDB · book-ipcn67-71
CCDB · book-ipcn67-71 — NIEHAUS, T., & L. WONG, JR. 1971. In IOPB chromosome reports XXXII. Taxon 20: 3Q9-356.
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 accuracy91% within 1 km
≤100 m 7 117≤1 km 721≤10 km 331>10 km 415
8 584 georeferenced · 1 981 without coordinates
Open the mapobservation + sensor10 565
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 accuracy59% within 1 km
≤100 m 63≤1 km 445≤10 km 307>10 km 47
862 georeferenced · 837 without coordinates
Open the institutions mapphysical evidence1 699
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 institutions63 of 86 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Claremont, US
182
San Diego, US
159
Riverside, US
150
Santa Barbara, US
109
Davis, US
76
Bronx, US
69
Corvallis, US
65
San Luis Obispo, US
57
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
55
Chicago, US
50
Pullman, US
46
US
39
Canadian Department of Agriculturelocation not on record
33
CASlocation not on record
33
WTUlocation not on record
29
St. Paul, US
26
Arcata, US
24
Fredericton Stock Culture Collectionlocation not on record
24
Irvine, US
20
Logan, US
18
Los Angeles, US
17
Angwin, US
16
Provo, US
16
Severin-McDaniel Insect Collectionlocation not on record
14
Saint Louis, US
13
University of Stellenboschlocation not on record
12
Austin, US
12
Wuzhou, CN
11
Philadelphia, US
11
Moscow, US
10
Boise, US
10
Long Beach, US
9
Northridge, US
8
Henderson, US
8
Pocatello, US
8
EL PASO, US
7
San Jose, US
6
Bloomington, US
6
Catalina Island Conservancylocation not on record
5
Fort Worth, US
5
Santa Cruz, US
4
Pomona Collegelocation not on record
4
Mexico City, MX
4
San Francisco, US
4
Portland, US
3
Caldwell, US
3
Tampa, US
3
Flagstaff, US
3
STNFlocation not on record
3
Bend, US
3
Bureau of Land Management, Medford District Officelocation not on record
3
San Bernardino, US
2
Fort Bragg, US
2
Vancouver, CA
2
KNFHClocation not on record
2
ASUlocation not on record
2
Kew, GB
2
Phoenix, US
2
Tacoma, US
2
Fullerton, US
2
Nantes Culture Collectionlocation not on record
2
Madison, US
2
KNFYlocation not on record
2
IDElocation not on record
2
US
1
Burlington, US
1
Green Bay, US
1
The University of Arizonalocation not on record
1
Calabar, NG
1
INFlocation not on record
1
Eastern Nevada Landscape Coalitionlocation not on record
1
GB
1
UC Berkeley, Blue Oak Ranch Reservelocation not on record
1
Truckee, US
1
Mississippi State, US
1
Bangkok, TH
1
San Diego Natural History Museum, Herbariumlocation not on record
1
Musee des Dinosaures d'Esperaza (Aude)location not on record
1
DOI/NPS, Craters of the Moon National Monument & Preservelocation not on record
1
Guasave, MX
1
Portland, US
1
La Paz, MX
1
New Brunswick, US
1
Dekalb, US
1
Bozeman, US
1
Mexico City, MX
1
86 institutions · 1 553 of 1 699 vouchered records shown · 146 without an institution code
09Environmental DNA2 detections
Where the DNA of Asclepias fascicularis 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
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 2 detections have coordinates
Open the map1 country0
Quercus agrifolia, Vitis spp., Toxicodendron…
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 median23.8 °C 23.8–23.8
Seasonal swing summer↔winter13.7 °C
Max temp (day)31.4 °C
Min temp (night)17.2 °C
Precipitation5.40 mm/mo
Air humidity52.2 %
Moisture balance-158 mm/mo
Vapour deficit1,404 Pa
Wind speed1.50 m/s
Cloud cover13.1 %
CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · 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 Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility12 266 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics3 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↗