Eutrochium purpureum, commonly known as purple Joe-Pye weed or sweetscented joe pye weed, is an herbaceous perennial plant in the family Asteraceae. It is native to eastern and central North America, from Ontario east to New Hampshire and south as far as Florida, Louisiana, and Oklahoma.
No narrative description available for this taxon yet.
Compounds documented for Eutrochium purpureum across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
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 Eutrochium purpureum has left across the world's sequence archives.
At a glance
DNA specimens8
Marker genes5
eDNA detections4
Countries2
Marker genes sequenced
★ 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★rbcL★rbcLa★ITS2trnH-psbA
plant barcodefungal barcodemarker
06Genome at a glanceCCDB
The complete instruction manualEutrochium purpureum 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 size2 396 100 000 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 Eutrochium purpureum2.4 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.
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 204×CCDB · ipcn-api-dl · CCDB · eflora
CCDB · ipcn-api-dl — Love, A. & H. E. Connor. 1982. Relationships and taxonomy of New Zealand wheat grasses. New Zealand J. Bot. 20: 169–186.
CCDB · ipcn-api-dl — Watanabe, K., M. Ito, T. Yahara, V. I. Sullivan, T. Kawahara & D. J. Crawford. 1990. Numerical analyses of karyotype diversity in the genus Eupatorium (Compositae, Eupatorieae). Pl. Syst. Evol. 170: 215–228.
CCDB · ipcn-api-dl — Lamont, E. E. 1995. Taxonomy of Eupatorium section Verticillata (Asteraceae). Mem. New York Bot. Gard. 72: 1–68.
CCDB · eflora
n 102×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Freeman, C. C. & R. E. Brooks. 1988. Documented plant chromosome numbers 1988: 1. Chromosome counts for North American plants -- I. Sida 13: 241–250.
CCDB · ipcn-api-dl — King, R. M., D. W. Kyhos, A. M. Powell, P. H. Raven & H. Robinson. 1976 [1977]. Chromosome numbers in Compositae. XIII. Eupatorieae. Ann. Missouri Bot. Gard. 63(4): 862–888.
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 accuracy88% within 1 km
≤100 m 2 424≤1 km 481≤10 km 166>10 km 241
3 312 georeferenced · 621 without coordinates
Open the mapobservation + sensor3 933
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 accuracy52% within 1 km
≤100 m 46≤1 km 56≤10 km 86>10 km 7
195 georeferenced · 118 without coordinates
Open the institutions mapphysical evidence313
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 institutions42 of 60 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
University of New Hampshirelocation not on record
26
College Park, US
25
SLU Artdatabankenlocation not on record
21
Ann Arbor, US
20
Bangkok, TH
12
Chongqing Museumlocation not on record
11
St. Paul, US
11
Jackson, US
10
Bloomington, US
10
Madison, US
10
Denver, US
9
Dekalb, US
8
Museum of the Rockieslocation not on record
7
University of Stellenboschlocation not on record
7
Clemson, US
7
Western Carolina Universitylocation not on record
7
Chapel Hill, US
7
Norfolk, US
7
McWane Science Centerlocation not on record
6
LDlocation not on record
6
DOI/NPS, Greenbelt Parklocation not on record
5
Burlington, US
5
Asheville, US
5
Saint Louis, US
5
Bronx, US
5
Emporia, US
4
University of Tennessee at Chattanoogalocation not on record
4
Oskarshamn, SE
4
Pittsburg, US
4
Green Bay, US
2
Parkville, AU
2
Chicago, US
2
CJBGlocation not on record
2
Olocation not on record
2
Columbia, US
2
Moscow State Universitylocation not on record
2
Smithsonian Institutionlocation not on record
2
Northridge, US
2
Millersville, US
2
Tampa, US
2
Johnson City, US
2
Riverside, US
2
Dover, US
1
Durango, US
1
DBF-NHMDlocation not on record
1
KMNlocation not on record
1
New Haven, US
1
Rotorua, NZ
1
Lord Fairfax Community Collegelocation not on record
1
Philadelphia, US
1
Christchurch, NZ
1
Whitewater, US
1
Decorah, US
1
Hobart, AU
1
Fayetteville, US
1
Museo Entomologico de Leonlocation not on record
1
Tartu, EE
1
Tuscaloosa, US
1
Chicago, US
1
GB
1
60 institutions · 312 of 313 vouchered records shown · 1 without an institution code
09Environmental DNA4 detections
Where the DNA of Eutrochium purpureum 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 found4
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 4 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 median23.2 °C 23.2–23.2
Seasonal swing summer↔winter23.3 °C
Max temp (day)28.5 °C
Min temp (night)17.9 °C
Precipitation101 mm/mo
Air humidity56.5 %
Moisture balance-57.1 mm/mo
Vapour deficit1,238 Pa
Wind speed2.40 m/s
Cloud cover31.5 %
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 Foundation5 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 246 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics8 specimens↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗