Hackelia virginiana, a biennial plant, is commonly known as beggar's lice, sticktight or stickseed. However, the common names beggar's lice and stick-tight are also used for very different plants, such as Desmodium species that are also known as "tick-trefoil".
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 Hackelia virginiana has left across the world's sequence archives.
At a glance
DNA specimens22
Marker genes5
GenBank sequences7
eDNA detections4
Countries2
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.
★matK2★rbcL4★rbcLa★ITS1trnH-psbA
plant barcodefungal barcodemarker
06Genome at a glanceCCDB
The complete instruction manualHackelia virginiana 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 size653 793 000 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 Hackelia virginiana0.65 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.
Chromosomes2n = 24 n = 12
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
n 121×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Gentry, J. L. & R. L. Carr. 1976. A revision of the genus Hackelia (Boraginaceae) in North America, north of Mexico. Mem. New York Bot. Gard. 26(1): 121–227.
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 accuracy87% within 1 km
≤100 m 5 152≤1 km 1 196≤10 km 334>10 km 647
7 329 georeferenced · 1 274 without coordinates
Open the mapobservation + sensor8 603
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 accuracy45% within 1 km
≤100 m 101≤1 km 378≤10 km 554>10 km 39
1 072 georeferenced · 462 without coordinates
Open the institutions mapphysical evidence1 534
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 institutions63 of 88 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Philadelphia, US
262
Chongqing Museumlocation not on record
163
Madison, US
157
Bloomington, US
122
Wuzhou, CN
98
St. Paul, US
91
Bronx, US
54
Saint Louis, US
43
Ann Arbor, US
41
Burlington, US
31
University of Stellenboschlocation not on record
26
New Haven, US
25
Allentown, US
25
Université Lavallocation not on record
24
Williamsburg, US
21
University of New Hampshirelocation not on record
19
Toronto, CA
17
Green Bay, US
17
McWane Science Centerlocation not on record
15
Chadron, US
14
Québec, CA
13
Lincoln, US
12
Morgantown, US
11
Montréal, CA
10
College Park, US
9
Chicago, US
8
Museum of the Rockieslocation not on record
7
Spearfish, US
7
Minia, EG
7
Smithsonian Institutionlocation not on record
6
Tampa, US
6
Royal Botanical Gardenslocation not on record
6
Fairfax, US
5
Millersville, US
5
Pittsburg, US
5
Fayetteville, US
5
Keene State Universitylocation not on record
5
Fort Worth, US
4
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
4
University of Wisconsinlocation not on record
4
Mississippi State, US
4
Bangkok, TH
4
Staten Island, US
4
New Brunswick, US
4
Little Rock, US
4
Flagstaff, US
3
Austin, US
3
Durham, US
3
Jackson, US
3
Whitewater, US
3
Meguro Parasitological Museumlocation not on record
3
Tempe, US
3
Dekalb, US
2
Provo, US
2
Jefferson City, US
2
Kirksville, US
2
Davenport, US
2
Knoxville, US
2
Brookings, US
2
Chapel Hill, US
2
Pullman, US
2
Acadia Universitylocation not on record
2
Macomb, US
2
University of Guelph, OAC Herbariumlocation not on record
2
Philadelphia, US
2
Emporia, US
2
Maryland Department of Natural Resourceslocation not on record
2
PHlocation not on record
1
Riverside, US
1
Cambridge, US
1
AUAlocation not on record
1
San Jose State University, Museum of Birds and Mammalslocation not on record
1
National Institute of Biological Resourceslocation not on record
1
BAYLUlocation not on record
1
Royal Ontario Museum, Green Plant Herbarium (TRT)location not on record
1
USFS/BHSClocation not on record
1
EL PASO, US
1
Tuscaloosa, US
1
Harrisonburg, US
1
Edmonton, CA
1
Mohonk Preservelocation not on record
1
Hudson, US
1
DOI/NPS, Greenbelt Parklocation not on record
1
Northridge, US
1
GAlocation not on record
1
San Angelo, US
1
Mount Pleasant, US
1
Long Beach, US
1
88 institutions · 1 496 of 1 534 vouchered records shown · 38 without an institution code
09Environmental DNA4 detections
Where the DNA of Hackelia virginiana 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
Talus at base of cliff
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 median14.1 °C 6.80–21.4
Seasonal swing summer↔winter26.3 °C
Max temp (day)19.1 °C 11.6–26.6
Min temp (night)9.60 °C 3.00–16.2
Precipitation84.2 mm/mo 71.1–97.3
Air humidity58.9 % 57.0–60.8
Moisture balance-32.3 mm/mo -52.1–-12.5
Vapour deficit836 Pa 514–1,158
Wind speed3.40 m/s 2.60–4.20
Cloud cover40.1 % 33.2–47.0
CHELSA 1981–2010, ~9 km grid, at location & month of 2 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.
WikipediaWikimedia Foundation2 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility10 137 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics22 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗