Symphyotrichum bracteolatum

(Nutt.) G.L.Nesom · species

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Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Symphyotrichum

At a glance

Occurrence records609

Data sources9

Biological traits7

DNA specimens0

eDNA detections2

Sources9 archives

Databases and archives Symphyotrichum bracteolatum's data was compiled from.

WikipediaWikimedia Foundation2 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility609 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗

LOTUSNatural Products (Wikidata)compounds↗

GRIN TaxonomyUSDA-ARSdistribution & uses↗

CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗

PloiDBPloidy Databasegenome & karyotype

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page6 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements2 literature sources7 traits

Chemical compositionLOTUS10 compounds

Occurrence & distributionGBIF609 records

Environmental DNA1 datasets · 1 countries2 detections

Genome at a glanceCCDB2n = 16

01Narrative

Symphyotrichum eatonii (formerly Aster eatonii) is a species of aster known by the common name Eaton's aster. It is native to much of western North America from British Columbia to Saskatchewan, the Sierra Nevada in California, the Rocky Mountains region, to Arizona and New Mexico, where it grows in many habitats, especially wet areas such as meadows and near ditches.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesTRYGIFT

Life cycle & reproduction1

Life spanperennial

Diet & foraging1

Parasiteindependent

Habitat & environment5

Aquaticterrestrial

Climberself-supporting

Epiphyteterrestrial

Growth formherb

Woodinessnon-woody

03Chemical composition10 compounds

Compounds documented for Symphyotrichum bracteolatum across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").

Compound class profile2 classes

Flavonols7

Flavones3

Documented compounds10 total

Tissue Source Quantified only

Compound	Amount	Source
2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl)oxychromen-4-one	present	LOTUS
acs.jmedchem.1c00409_ST.657	present	LOTUS
Apigenin	present	LOTUS
Astragalin	present	LOTUS
Hyperin	present	LOTUS
Kaempferol	present	LOTUS
Kaempferol 3-O-beta-D-galactopyranoside	present	LOTUS
Luteolin 7-diglucoside	present	LOTUS
Luteolin 7-galactoside	present	LOTUS
Querciturone	present	LOTUS

05DNA & barcoding2 eDNA hits

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 bracteolatum has left across the world's sequence archives.

At a glance

eDNA detections2

Countries1

06Genome at a glanceCCDB

The complete instruction manual Symphyotrichum bracteolatum 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 = 16 n = 8

Ploidypolyploid inferred

Chromosome records16–162n range16median16mode4records

Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references

2n 164×CCDB · ipcn-api-dl

CCDB · ipcn-api-dl — Semple, J. C. 1985. Chromosome number determinations in fam. Compositae tribe Astereae. Rhodora 87: 517–527.

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.

CCDB · ipcn-api-dl — Semple, J. C., J. G. Chmielewski & C. Xiang. 1992. Chromosome number determinations in fam. Compositae, tribe Astereae. IV. Additional reports and comments on the cytogeography and status of some species of Aster and Solidago. Rhodora 94: 48–62.

CCDB · ipcn-api-dl — Semple, J. C., C. Xiang, J. Zhang, M. Horsburgh & R. Cook. 2001. Chromosme number determinations in Fam. Compositae, tribe Astereae. VI. Western North American taxa and comments on generic treatments of North American asters. Rhodora 103: 202–218.

2n 91×CCDB · book-ipcn67-71

CCDB · book-ipcn67-71 — SOLBRIG, Q.T., L.C. ANDERSON, D.W. KYHOS, & P.H. RAVEN. 1969. Chromosome numbers in Compositae. VIII: Astereae III. Amer. J. Bot. 56: 348-353.

n 81×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.

n 91×CCDB · book-ipcn67-71

CCDB · book-ipcn67-71 — SOLBRIG, Q.T., L.C. ANDERSON, D.W. KYHOS, & P.H. RAVEN. 1969. Chromosome numbers in Compositae. VIII: Astereae III. Amer. J. Bot. 56: 348-353.

Ploidy records — measured levels and diploid/polyploid inferences · click for sources

polyploid inferred1×PloiDB · genus-scale

PloiDB · genus-scale — chromEvol; reliability=0.982 ↗

08Occurrence & distribution

Record type609 records

Wild obs. + sensor89

Museum / vouchered520

Origin

Native1

Range

Area of Occupancy AOO1 660 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 accuracy94% within 1 km

≤100 m 54≤1 km 7≤10 km 3>10 km 1

65 georeferenced · 24 without coordinates

Open the mapobservation + sensor89

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 10≤1 km 136≤10 km 93>10 km 9

248 georeferenced · 272 without coordinates

Open the institutions mapphysical evidence520

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 institutions21 of 28 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Pullman, US	138
Corvallis, US	82
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record	51
Arcata, US	29
Riverside, US	22
Davis, US	18
Vancouver, CA	16
San Diego, US	14
Boise, US	10
Victoria, CA	6
Montréal, CA	5
WTUlocation not on record	5
Flagstaff, US	4
CASlocation not on record	4
San Luis Obispo, US	4
Henderson, US	4
Claremont, US	3
Denver, US	2
University of Stellenboschlocation not on record	2
Moscow, US	2
INFlocation not on record	2
Northridge, US	1
Logan, US	1
Canadian Department of Agriculturelocation not on record	1
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record	1
Missoula, US	1
Pittsburg, US	1
Santa Barbara, US	1

28 institutions · 430 of 520 vouchered records shown · 90 without an institution code

09Environmental DNA2 detections

Where the DNA of Symphyotrichum bracteolatum 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

Large sloppy wetland that is thermally alter…Dike edge of river estuary.

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 median13.7 °C 13.7–13.7

Seasonal swing summer↔winter24.8 °C

Max temp (day)21.0 °C

Min temp (night)6.70 °C

Precipitation55.1 mm/mo

Air humidity46.9 %

Moisture balance-83.5 mm/mo

Vapour deficit833 Pa

Wind speed3.10 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.

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