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 Equisetum praealtum has left across the world's sequence archives.
At a glance
eDNA detections6
Countries2
06Genome at a glanceGoaT
The complete instruction manualEquisetum praealtum 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.
Ploidy2× diploid · measured
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
diploid1×GIFT · GIFT (floras)
GIFT · GIFT (floras)
08Occurrence & distribution
Record type168 records
Wild obs. + sensor42
Museum / vouchered126
Range
Area of Occupancy AOO568 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 accuracy100% within 1 km
≤1 km 42
42 georeferenced
Open the mapobservation + sensor42
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 accuracy37% within 1 km
≤100 m 7≤1 km 18≤10 km 36>10 km 6
67 georeferenced · 59 without coordinates
Open the institutions mapphysical evidence126
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 institutions22 of 27 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Denver, US
34
Philadelphia, US
19
WTUlocation not on record
9
Bronx, US
8
Bangkok, TH
7
Jackson, US
7
Pittsburg, US
6
Chicago, US
5
Chapel Hill, US
4
James F. Matthews Center for Biodiversity Studieslocation not on record
4
Austin, US
3
Pocatello, US
2
MeiseBGlocation not on record
2
Kew, GB
2
Brussel, BE
2
Columbia, US
1
Lubbock, US
1
Cincinnati, US
1
Musee des Dinosaures d'Esperaza (Aude)location not on record
1
Riverside, US
1
Fairfax, US
1
Nishihara, JP
1
Blacksburg, US
1
Fort Worth, US
1
Oskarshamn, SE
1
ASUlocation not on record
1
Bozeman, US
1
27 institutions · 126 of 126 vouchered records shown
09Environmental DNA6 detections
Where the DNA of Equisetum praealtum 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 found6
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 6 detections have coordinates
Open the map2 countries0
Riparian with Quercus agrifolia, Platanus ra…
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 median18.9 °C 17.4–19.5
Seasonal swing summer↔winter30.4 °C
Max temp (day)23.0 °C 22.2–24.1
Min temp (night)15.0 °C 13.4–15.6
Precipitation102 mm/mo 24.6–104
Air humidity59.7 % 57.1–61.4
Moisture balance-48.2 mm/mo -118–-32.2
Vapour deficit924 Pa 780–944
Wind speed3.30 m/s 2.20–3.70
Cloud cover44.9 % 29.1–48.2
CHELSA 1981–2010, ~9 km grid, at location & month of 3 detection points · 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.
