Chenopodium fremontii is a species of flowering plant in the family Amaranthaceae known by the common name Frémont's goosefoot. Both the species' specific epithet, and the common name derive from the 19th century western pioneer John C. Frémont. It is native to much of the western half of North America from Canada through California to Mexico.USDA-profile It grows in many types of habitat from open desert, to shady forest, at 700 –.Jepson treatment
No narrative description available for this taxon yet.
Compounds documented for Chenopodium fremontii 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 Chenopodium fremontii has left across the world's sequence archives.
At a glance
DNA specimens14
Marker genes7
GenBank sequences8
eDNA detections7
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★rbcL3★rbcLa★trnL-F★ITS3★ITS2trnH-psbA
plant barcodefungal barcodemarker
06Genome at a glanceCCDB · GoaT
The complete instruction manualChenopodium fremontii 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 size601 225 500 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 Chenopodium fremontii0.60 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.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy92% within 1 km
≤100 m 78≤1 km 3≤10 km 1>10 km 6
88 georeferenced · 42 without coordinates
Open the mapobservation + sensor130
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 accuracy59% within 1 km
≤100 m 139≤1 km 316≤10 km 263>10 km 48
766 georeferenced · 1 008 without coordinates
Open the institutions mapphysical evidence1 774
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 institutions69 of 104 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Claremont, US
215
Riverside, US
135
ASUlocation not on record
126
Albuquerque, US
121
Flagstaff, US
118
Bronx, US
108
San Diego, US
73
Severin-McDaniel Insect Collectionlocation not on record
63
DOI/NPS, Colonial National Historical Parklocation not on record
60
Provo, US
50
Santa Barbara, US
49
Wuzhou, CN
45
Phoenix, US
40
Denver, US
38
Musee des Dinosaures d'Esperaza (Aude)location not on record
22
Moscow, US
20
EL PASO, US
19
Chadron, US
19
CASlocation not on record
18
Madison, US
18
DOI/NPS, Greenbelt Parklocation not on record
16
Lincoln, US
15
Pocatello, US
14
Boise, US
14
Durango, US
13
Chongqing Museumlocation not on record
12
Corvallis, US
12
Vancouver, CA
12
Henderson, US
12
Missoula, US
11
Chicago, US
11
Davis, US
11
Mexico City, MX
11
Spearfish, US
10
Orem, US
8
Durango, MX
8
Logan, US
7
Victoria, CA
7
Angwin, US
7
Austin, US
7
Bloomington, US
6
US
6
Caldwell, US
6
Mexico City, MX
6
La Paz, MX
5
WINlocation not on record
5
Saint Louis, US
5
Ciudad de México, MX
5
Ensenada, MX
5
Anchorage, US
5
Canadian Department of Agriculturelocation not on record
5
San Jose State University, Museum of Birds and Mammalslocation not on record
5
Grand Junction, US
4
Zacatecas, MX
4
Eastern Nevada Landscape Coalitionlocation not on record
4
Arcata, US
4
Bureau of Land Managementlocation not on record
4
Bozeman, US
4
WTUlocation not on record
4
Fredericton Stock Culture Collectionlocation not on record
4
Northridge, US
4
USFS/BHSClocation not on record
4
University of Stellenboschlocation not on record
3
Pullman, US
3
University of Alberta Museumslocation not on record
3
Chapel Hill, US
2
Fort Worth, US
2
Austin, US
2
Cambridge, US
2
San Angelo, US
2
San Luis Obispo, US
2
San Jose, US
2
Pittsburg, US
2
Bandelier National Monumentlocation not on record
2
Weber State Universitylocation not on record
2
INFlocation not on record
2
Long Beach, US
2
Arizona State University Biocollectionslocation not on record
2
Tacoma, US
1
University of British Columbia, Herbariumlocation not on record
1
Adam Mickiewicz University in Poznańlocation not on record
1
Yellowstone National Park Herbariumlocation not on record
1
Research Collection of B. A. Bennettlocation not on record
1
Stephenville, US
1
Uniwersytet Śląski w Katowicachlocation not on record
1
IDElocation not on record
1
Chapingo, MX
1
Berlin, DE
1
Paris, FR
1
Portland, US
1
Pomona Collegelocation not on record
1
San Diego Natural History Museum, Herbariumlocation not on record
1
Whitehorse, CA
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
Lubbock, US
1
McWane Science Centerlocation not on record
1
Moscow State Universitylocation not on record
1
Bangkok, TH
1
St. Paul, US
1
USFSlocation not on record
1
Giardini Botanici Hanburylocation not on record
1
Mississippi State, US
1
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
1
Tampa, US
1
104 institutions · 1 740 of 1 774 vouchered records shown · 33 without an institution code
09Environmental DNA7 detections
Where the DNA of Chenopodium fremontii 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 found7
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 7 detections have coordinates
Open the map2 countries0
Bare ground on slope with Douglas firrocky ledges
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 median13.9 °C 12.0–15.1
Seasonal swing summer↔winter24.1 °C
Max temp (day)21.7 °C 18.5–22.4
Min temp (night)8.10 °C 6.50–8.90
Precipitation42.4 mm/mo 25.7–66.4
Air humidity52.1 % 45.2–56.1
Moisture balance-78.2 mm/mo -108–-29.1
Vapour deficit782 Pa 671–947
Wind speed3.30 m/s 2.20–5.70
Cloud cover33.0 % 23.5–40.1
CHELSA 1981–2010, ~9 km grid, at location & month of 5 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 Facility2 220 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI7 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics14 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↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗