Eutrochium maculatum
(L.) E.E.Lamont · speciesAt a glance
Sources12 archives
Databases and archives Eutrochium maculatum's data was compiled from.
WikipediaWikimedia Foundation6 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility17 605 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI18 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics28 specimens↗
NCBIUS National Library of Medicinesequences↗
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↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Eutrochium maculatum, the spotted joe-pyeweed, is a North American species of flowering plant in the family Asteraceae. It is widespread through much of the United States and Canada.Eutrochium maculatum, Natural Resources Canada It is the only species of the genus Eutrochium found west of the Great Plains. This herbaceous perennial sometimes grows as high as 2 m. Stems are sometimes completely purple, sometimes green with purple spots. One plant can produce numerous rose-purple flower heads in late summer, each head with 8-22 disc flowers but no ray flowers. The specific name maculatum, meaning spotted, refers to the purple spots on the stem.Dickinson, T.; Metsger, D.; Bull, J.; & Dickinson, R. (2004) ROM Field Guide to Wildflowers of Ontario. Toronto:Royal Ontario Museum, p. 164. Spotted joe-pyeweed thrives in marshes, rich fens and swamps. It also does well in man-made moist expanses such as ditches, seepage areas and wet fields. Above all else the plant flourishes in the non-shaded environments that are also abundant in wetlands. It is a larval host to the Clymene moth, the eupatorium borer moth, the ruby tiger moth, and the three-lined flower moth.The Xerces Society (2016), Gardening for Butterflies: How You Can Attract and Protect Beautiful, Beneficial Insects, Timber Press. The plant also attracts butterflies and honeybees.
No narrative description available for this taxon yet.
Size & morphology5
Life cycle & reproduction5
Diet & foraging1
Habitat & environment6
Physiology & chemistry7
Compounds documented for Eutrochium maculatum across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile1 class
Documented compounds5 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (2E,6Z,8E)-N-[(2S)-2-methylbutyl]deca-2,6,8-trienamide | present | NPASS | |
| (z)-Dec-2-en-6,8-diynoic acid isobutylamide | present | NPASS | |
| (z)-Non-2-en-6,8-diynoic acid isobutylamide | present | NPASS | |
| Choline | present | NPASS | |
| Spilanthol | present | NPASS |
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 maculatum has left across the world's sequence archives.
At a glance
★ 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.
The complete instruction manual Eutrochium maculatum 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
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).
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.
2n 207×CCDB · ipcn-api-dl · CCDB · eflora
n 105×CCDB · ipcn-api-dl
diploid inferred1×PloiDB · genus-scale
Record type17 605 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
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.
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions43 of 77 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Burlington, US | 58 |
| Green Bay, US | 50 |
| St. Paul, US | 44 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 38 |
| University of New Hampshirelocation not on record | 35 |
| Ann Arbor, US | 34 |
| SLU Artdatabankenlocation not on record | 31 |
| Spearfish, US | 24 |
| Madison, US | 18 |
| Denver, US | 17 |
| Montréal, CA | 17 |
| Bloomington, US | 13 |
| University of Wisconsinlocation not on record | 12 |
| Whitewater, US | 12 |
| Chongqing Museumlocation not on record | 11 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 11 |
| University of Stellenboschlocation not on record | 9 |
| Mount Pleasant, US | 9 |
| Stockholm, SE | 8 |
| McWane Science Centerlocation not on record | 8 |
| Hudson, US | 7 |
| Université Lavallocation not on record | 5 |
| University of Guelph, OAC Herbariumlocation not on record | 5 |
| Bangkok, TH | 5 |
| Fargo, US | 5 |
| Oskarshamn, SE | 5 |
| Dekalb, US | 5 |
| Museum of the Rockieslocation not on record | 4 |
| Durham, US | 4 |
| College Park, US | 4 |
| LDlocation not on record | 4 |
| WINlocation not on record | 4 |
| Museo Entomologico de Leonlocation not on record | 4 |
| Emporia, US | 3 |
| Knoxville, US | 3 |
| Baltimore, US | 3 |
| Smithsonian Institutionlocation not on record | 3 |
| DOI/NPS, Greenbelt Parklocation not on record | 3 |
| Ypsilanti, US | 3 |
| Philadelphia, US | 3 |
| Royal Botanical Gardenslocation not on record | 2 |
| Toronto, CA | 2 |
| Adam Mickiewicz University in Poznańlocation not on record | 2 |
| State University of New York, College at Oneontalocation not on record | 2 |
| Québec, CA | 2 |
| National Institute of Biological Resourceslocation not on record | 2 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 2 |
| US | 2 |
| University of Wisconsinlocation not on record | 1 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 1 |
| MeiseBGlocation not on record | 1 |
| Flagstaff, US | 1 |
| Norfolk, US | 1 |
| Clemson, US | 1 |
| Oswego, US | 1 |
| Tempe, US | 1 |
| Western Carolina Universitylocation not on record | 1 |
| Claremont, US | 1 |
| Hobart, AU | 1 |
| Chicago, US | 1 |
| Logan, US | 1 |
| USFS/BHSClocation not on record | 1 |
| Cincinnati, US | 1 |
| IDElocation not on record | 1 |
| Moscow State Universitylocation not on record | 1 |
| New Brunswick, US | 1 |
| Brussel, BE | 1 |
| McGill University, Herbariumlocation not on record | 1 |
| Science Museum of Minnesotalocation not on record | 1 |
| DULlocation not on record | 1 |
| Boise, US | 1 |
| Riverside, US | 1 |
| New Haven, US | 1 |
| LPMMBHlocation not on record | 1 |
| Bruce Peninsula National Parklocation not on record | 1 |
| University of Alberta Museumslocation not on record | 1 |
| Orem, US | 1 |
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Where the DNA of Eutrochium maculatum 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
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
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.