Solidago radula, the western rough goldenrod, is a North American plant species in the family Asteraceae. It is found primarily in the southern Great Plains and the Mississippi Valley of the United States (from Texas to Illinois), with isolated populations farther east in Kentucky, Georgia, and the Carolinas.Biota of North America Program 2014 county distribution map Solidago radula is a perennial herb up to 90 cm (3 feet) tall, with a caudex and rhizomes. Lower leaves can be up to 10 cm (4 inches) long, leaves higher on the stem much smaller. One plant can produce as many as 260 small yellow flower heads in a branching array. The species grows in open rocky places and in dry woodlands.Flora of North America, Solidago radula Nuttall, 1834. Western rough goldenrod
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 Solidago radula has left across the world's sequence archives.
At a glance
DNA specimens4
Marker genes2
eDNA detections2
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.
★rbcLa★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualSolidago radula 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.
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 184×CCDB · ipcn-api-dl · CCDB · book-ipcn67-71
CCDB · ipcn-api-dl — Semple, J. C. & J. G. Chmielewski. 1987. Chromosome number determinations in fam. Compositae, tribe Astereae. II. Additional counts. Rhodora 89: 319–325.
CCDB · ipcn-api-dl — Semple, J. C., J. Zhang & C. Xiang. 1993. Chromosome number determinations in fam. Compositae, tribe Astereae. V. Eastern North American taxa. Rhodora 95: 234–253.
CCDB · book-ipcn67-71 — BEAUDRY, J.R. 1970. Etudes sur les Solidago. XI. Caryotypes additionnels de taxon du genre Solidago L. Naturaliste Canad. 97: 431-445.
CCDB · book-ipcn67-71 — BEAUDRY, J.R. 1969. Etudes sur les Solidago L. IX. Une liste de nombres chromosomiques des taxons du genre Solidago et de certains genres voisins. Naturaliste Canad. 96: 103-114.
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 accuracy89% within 1 km
≤100 m 162≤1 km 11≤10 km 9>10 km 12
194 georeferenced · 68 without coordinates
Open the mapobservation + sensor262
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 accuracy23% within 1 km
≤100 m 10≤1 km 54≤10 km 191>10 km 28
283 georeferenced · 287 without coordinates
Open the institutions mapphysical evidence570
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 institutions38 of 52 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Fort Worth, US
90
Bronx, US
86
Chicago, US
85
Saint Louis, US
68
Austin, US
63
Wuzhou, CN
41
GB
12
Chongqing Museumlocation not on record
9
Bloomington, US
9
Little Rock, US
7
US
7
Bangkok, TH
6
Denton, US
6
Jefferson City, US
5
Springfield, US
5
University of Stellenboschlocation not on record
4
Fayetteville, US
4
BAYLUlocation not on record
4
Pittsburg, US
4
Chapel Hill, US
3
Emporia, US
3
Philadelphia, US
3
Moscow, US
3
Stephenville, US
2
Davis, US
2
San Angelo, US
2
China Agricultural Universitylocation not on record
2
Mississippi State, US
2
Burlington, US
2
Dekalb, US
2
University of Guelph, OAC Herbariumlocation not on record
2
Columbia, US
2
Denver, US
1
EL PASO, US
1
Institut und Museum fuer Geologie und Palaeontologielocation not on record
1
Acadia Universitylocation not on record
1
Clemson, US
1
Hazara Universitylocation not on record
1
Knoxville, US
1
Kirksville, US
1
Appalachian State Universitylocation not on record
1
Flagstaff, US
1
Montréal, CA
1
LINUlocation not on record
1
DOI/NPS, Greenbelt Parklocation not on record
1
xMDC-Clintonlocation not on record
1
University of Southern Mississippilocation not on record
1
Madison, US
1
Lubbock, US
1
Pondicherry, IN
1
GAlocation not on record
1
Jackson, US
1
52 institutions · 565 of 570 vouchered records shown · 5 without an institution code
09Environmental DNA2 detections
Where the DNA of Solidago radula 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 found2
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 2 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 median8.60 °C 8.60–8.60
Seasonal swing summer↔winter26.4 °C
Max temp (day)13.5 °C
Min temp (night)5.60 °C
Precipitation73.5 mm/mo
Air humidity60.5 %
Moisture balance12.4 mm/mo
Vapour deficit441 Pa
Wind speed4.40 m/s
Cloud cover54.4 %
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.