Symphyotrichum ascendens (formerly Aster ascendens) is a species of flowering plant in the family Asteraceae known by the common names western aster, long-leaved aster, and Rocky Mountain aster. Blooming July–September, it is native to western North America and can be found at elevations of 500–3200 m in several 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 Symphyotrichum ascendens has left across the world's sequence archives.
At a glance
DNA specimens6
Marker genes5
GenBank sequences3
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.
★rbcL2★rbcLa★trnL-F★ITS1★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualSymphyotrichum ascendens 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.
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 261×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Semple, J. C., J. G. Chmielewski & M. E. Lane. 1989. Chromosome number determinations in fam. Compositae, tribe Astereae. III. Additional counts and comments on generic limits and ancestral base numbers. Rhodora 91: 296–314.
2n 521×CCDB · eflora
CCDB · eflora
n 131×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Allen, G. A. & C. L. Eccleston. 1998. Genetic resemblance of allotetraploid Aster ascendens to its diploid progenitors Aster falcatus and Aster occidentalis. Canad. J. Bot. 76: 338–344.
n 271×CCDB · book-ipcn73-74
CCDB · book-ipcn73-74 — ANDERSON, L.C., D.W. KYHOS, T. MOSQUIN, A.M. POWEL~, & P.H. RAVEN. 1974. Chromosome numbers in Compositae. IX Haplopappus and other Astereae. Amer. J. Bot. 61: 665-671.
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 accuracy92% within 1 km
≤100 m 250≤1 km 53≤10 km 7>10 km 18
328 georeferenced · 105 without coordinates
Open the mapobservation + sensor433
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 accuracy53% within 1 km
≤100 m 97≤1 km 261≤10 km 278>10 km 35
671 georeferenced · 1 077 without coordinates
Open the institutions mapphysical evidence1 748
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 institutions57 of 76 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Bronx, US
367
Moscow, US
123
Musee des Dinosaures d'Esperaza (Aude)location not on record
101
Corvallis, US
87
Pullman, US
86
Wuzhou, CN
85
Missoula, US
74
Logan, US
59
Denver, US
54
Pocatello, US
49
Riverside, US
48
Flagstaff, US
47
Albuquerque, US
44
Claremont, US
35
Henderson, US
34
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
32
Boise, US
31
Caldwell, US
31
Santa Barbara, US
25
Phoenix, US
25
CASlocation not on record
23
Provo, US
19
Chadron, US
19
Davis, US
18
Orem, US
17
DOI/NPS, Greenbelt Parklocation not on record
16
San Diego, US
12
ASUlocation not on record
11
WTUlocation not on record
11
Saint Louis, US
10
University of Stellenboschlocation not on record
9
Pittsburg, US
9
Arcata, US
9
San Luis Obispo, US
8
Durango, US
8
University of Alberta Museumslocation not on record
6
Vancouver, CA
6
Montréal, CA
6
Eastern Nevada Landscape Coalitionlocation not on record
4
Bangkok, TH
4
Turku, FI
4
Weber State Universitylocation not on record
4
Bloomington, US
4
US
4
US
3
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
3
Madison, US
3
Los Angeles, US
3
VALElocation not on record
2
DOI/NPS, Colonial National Historical Parklocation not on record
2
Victoria, CA
2
Grand Junction, US
2
Austin, US
2
Macomb, US
2
San Jose, US
2
St. Paul, US
2
MAlocation not on record
2
Stockholm, SE
2
Canadian Department of Agriculturelocation not on record
2
Denton, US
1
EL PASO, US
1
Tempe, US
1
Santa Cruz, US
1
Toronto, CA
1
San Angelo, US
1
Taipei, TW
1
Truckee, US
1
USFSlocation not on record
1
Yellowstone National Park Herbariumlocation not on record
1
TFBLMlocation not on record
1
Chicago, US
1
Beijing, CN
1
Turlock, US
1
Spearfish, US
1
Bureau of Land Management, Caliente Field Officelocation not on record
1
Minia, EG
1
76 institutions · 1 729 of 1 748 vouchered records shown · 19 without an institution code
09Environmental DNA2 detections
Where the DNA of Symphyotrichum ascendens 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
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 median11.8 °C 11.8–11.8
Seasonal swing summer↔winter25.2 °C
Max temp (day)19.2 °C
Min temp (night)4.80 °C
Precipitation62.9 mm/mo
Air humidity45.7 %
Moisture balance-73.1 mm/mo
Vapour deficit755 Pa
Wind speed5.30 m/s
Cloud cover25.7 %
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 Foundation2 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 181 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI2 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↗