Polygala mariana, the Maryland milkwort, is a species of flowering plant in the milkwort family (Polygalaceae). It is endemic to the southern and eastern United States. It is an annual with a height between 4 and 16 in and it flowers between June and October.
No narrative description available for this taxon yet.
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 Polygala mariana has left across the world's sequence archives.
At a glance
DNA specimens1
Marker genes1
eDNA detections1
Countries1
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.
★ITS2
fungal barcode
06Genome at a glanceCCDB
The complete instruction manualPolygala mariana 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 = 34 n = 17
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 341×CCDB · book-fedorov
CCDB · book-fedorov — Lewis W. H., Davis 1962
n 171×CCDB · Cave1962
CCDB · Cave1962 — Lewis & Davis 1962.
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
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 accuracy34% within 1 km
≤100 m 14≤1 km 71≤10 km 111>10 km 51
247 georeferenced · 207 without coordinates
Open the institutions mapphysical evidence454
10Collections & institutions
Holding institutions36 of 53 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Williamsburg, US
72
Bangkok, TH
43
Bronx, US
34
University of Stellenboschlocation not on record
30
US
23
Chapel Hill, US
20
College Park, US
19
Austin, US
17
Philadelphia, US
16
Tuscaloosa, US
14
Wuzhou, CN
13
BAYLUlocation not on record
13
Columbia, US
12
Chongqing Museumlocation not on record
12
University of Southern Mississippilocation not on record
10
Dover, US
8
Bloomington, US
7
Valdosta State Universitylocation not on record
6
Little Rock, US
6
Miami, US
5
Tall Timbers Research Stationlocation not on record
5
AUAlocation not on record
4
Fairfax, US
4
Mexico City, MX
4
Mississippi State, US
4
Fort Worth, US
3
Clemson, US
3
Staten Island, US
3
Washington, US
3
GAlocation not on record
3
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
3
Norfolk, US
3
Millersville, US
3
Allentown, US
2
ASUlocation not on record
2
Saint Louis, US
2
Maryland Department of Natural Resourceslocation not on record
1
San Angelo, US
1
Fayetteville, US
1
University of North Carolina at Pembrokelocation not on record
1
EL PASO, US
1
Weymouth Woods Sandhills Nature Preservelocation not on record
1
Fredericksburg, US
1
Phoenix, US
1
Oswego, US
1
Knoxville, US
1
Uniwersytet Jagiellońskilocation not on record
1
Edmonton, CA
1
Burlington, US
1
University of South Carolina Salkehatchielocation not on record
1
Audubon Society -- Silver Bluff Audubon Center and Sanctuarylocation not on record
1
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
1
Pittsburg, US
1
53 institutions · 448 of 454 vouchered records shown · 6 without an institution code
09Environmental DNA1 detections
Where the DNA of Polygala mariana 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 found1
Studies independent surveys1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 1 detections have coordinates
Open the map0 countries0
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.
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 Foundation1 languages↗
GBIFGlobal Biodiversity Information Facility454 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI1 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics1 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype