Spiranthes vernalis, commonly called the spring ladies'-tresses, is a species of orchid that is native to North America, Central America and the Bahamas.http://wcsp.science.kew.org/ World Checklist of Selected Plant Families It is a perennial that produces a spiral of white flowers in the early summer.
No narrative description available for this taxon yet.
Compounds documented for Spiranthes vernalis 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 Spiranthes vernalis has left across the world's sequence archives.
At a glance
DNA specimens7
Marker genes4
GenBank sequences10
eDNA detections6
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.
★matK7★rbcL2★rbcLa★ITS1
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualSpiranthes vernalis 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 = 30 n = 15
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 301×CCDB · eflora
CCDB · eflora
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 accuracy68% within 1 km
≤100 m 2 245≤1 km 307≤10 km 123>10 km 1 067
3 742 georeferenced · 723 without coordinates
Open the mapobservation + sensor4 465
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 accuracy25% within 1 km
≤100 m 40≤1 km 110≤10 km 353>10 km 95
598 georeferenced · 468 without coordinates
Open the institutions mapphysical evidence1 066
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy0% within 1 km
≤10 km 1
1 georeferenced
Open the mapnot free-living1
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 institutions50 of 67 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Wuzhou, CN
141
Philadelphia, US
101
Tampa, US
92
Bronx, US
59
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
58
Chicago, US
49
Jena Microbial Resource Collectionlocation not on record
45
Miami, US
41
Saint Louis, US
39
Madison, US
38
Jackson, US
31
Fort Worth, US
28
Austin, US
26
US
21
Williamsburg, US
20
Valdosta State Universitylocation not on record
20
South Kensington, GB
18
Tuscaloosa, US
15
College Park, US
13
New Haven, US
12
Chongqing Museumlocation not on record
12
Knoxville, US
10
Little Rock, US
10
Columbia, US
10
Bangkok, TH
8
Pittsburg, US
8
Tall Timbers Research Stationlocation not on record
8
Clemson, US
7
Chapel Hill, US
6
University of Southern Mississippilocation not on record
6
Bloomington, US
6
AUAlocation not on record
4
Millersville, US
4
Henderson State Universitylocation not on record
4
Russellville, US
4
Chadron, US
3
International Salmonella Centre (W.H.O.)location not on record
3
Riverside, US
3
San Jose State University, Museum of Birds and Mammalslocation not on record
3
Lincoln, US
3
Blacksburg, US
2
GAlocation not on record
2
Norfolk, US
2
BAYLUlocation not on record
2
Missoula, US
2
University of Tennessee at Chattanoogalocation not on record
2
Edmonton, CA
2
Mississippi State, US
1
Morgantown, US
1
Christchurch, NZ
1
Flagstaff, US
1
Columbus State University Herbariumlocation not on record
1
Conway, US
1
Fairfax, US
1
Lubbock, US
1
Whitewater, US
1
Wlocation not on record
1
GB
1
Ann Arbor, US
1
Burlington, US
1
DOI/NPS, Greenbelt Parklocation not on record
1
Provo, US
1
Taipei, TW
1
Waverly, US
1
Fredericksburg, US
1
Santa Barbara, US
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
67 institutions · 1 023 of 1 066 vouchered records shown · 43 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA6 detections
Where the DNA of Spiranthes vernalis 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
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 6 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 median22.7 °C 22.7–22.7
Seasonal swing summer↔winter17.4 °C
Max temp (day)27.6 °C
Min temp (night)18.9 °C
Precipitation74.4 mm/mo
Air humidity58.9 %
Moisture balance-106 mm/mo
Vapour deficit1,128 Pa
Wind speed4.00 m/s
Cloud cover37.9 %
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 Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility5 532 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI6 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics7 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗