Trifolium gracilentum is a species of clover known by the common names pinpoint clover and slender clover. It is native to western North America including the west coast of the United States and northwestern Mexico, where it grows in many types of habitat, including disturbed areas. It is an annual herb growing prostrate to erect in form with mostly hairless or slightly hairy herbage. The leaves are made up of lance-shaped to oval leaflets. The inflorescence is an umbel of flowers that spread out or flex downward. The flowers have pink or purple corollas less than a centimeter long. One variety of this species, var. palmeri, is a rare plant limited to the Channel Islands of California; it is sometimes treated as a species in its own right, Trifolium palmeri.California Native Plant Society Rare Plant Profile
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 Trifolium gracilentum has left across the world's sequence archives.
At a glance
DNA specimens7
Marker genes5
GenBank sequences10
eDNA detections4
Countries1
The DNA barcodea real sequence read deposited for this species
Trifolium gracilentum voucher BMR Connors 504 small subunit ribosomal RNA gene, partial sequence; internal transcribed spacer 1, 5.8S ribosomal RNA gene, and internal transcribed spacer 2, complete sequence; and large subunit ribosomal RNA gene, partial sequence
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.
★matK★rbcL★rbcLa★ITS10★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualTrifolium gracilentum 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.
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
DNA clock origin15.7 Ma TimeTree
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
DNA clock origin
08Occurrence & distribution
Record type1 751 records
Wild obs. + sensor699
Museum / vouchered1 047
Other5
Origin
Native7
Range
Area of Occupancy AOO4 236 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy90% within 1 km
≤100 m 448≤1 km 37≤10 km 18>10 km 34
537 georeferenced · 162 without coordinates
Open the mapobservation + sensor699
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 accuracy64% within 1 km
≤100 m 59≤1 km 299≤10 km 185>10 km 13
556 georeferenced · 491 without coordinates
Open the institutions mapphysical evidence1 047
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 institutions35 of 46 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Santa Barbara, US
208
Claremont, US
137
Riverside, US
113
San Diego, US
94
San Luis Obispo, US
72
Davis, US
40
Santa Cruz, US
32
Los Angeles, US
24
ASUlocation not on record
22
Canadian Department of Agriculturelocation not on record
21
US
19
Phoenix, US
12
Arcata, US
11
Angwin, US
9
Irvine, US
9
Bronx, US
8
CASlocation not on record
7
LDlocation not on record
7
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
7
Calabar, NG
6
San Francisco, US
6
Wuzhou, CN
5
Northridge, US
5
Flagstaff, US
4
Turlock, US
3
Corvallis, US
3
University of Stellenboschlocation not on record
3
Long Beach, US
3
Ensenada, MX
2
EL PASO, US
2
Portland, US
2
Mississippi State, US
2
Severin-McDaniel Insect Collectionlocation not on record
2
Chapel Hill, US
1
Vancouver, CA
1
San Jose, US
1
Provo, US
1
Bangkok, TH
1
San Jose State University, Museum of Birds and Mammalslocation not on record
1
Arizona State University Biocollectionslocation not on record
1
Oskarshamn, SE
1
Catalina Island Conservancylocation not on record
1
Pullman, US
1
Mexico City, MX
1
Kew, GB
1
San Diego Natural History Museum, Herbariumlocation not on record
1
46 institutions · 913 of 1 047 vouchered records shown · 134 without an institution code
09Environmental DNA4 detections
Where the DNA of Trifolium gracilentum 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
Coastal Sage Scrub with Artemisia californic…
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 median16.5 °C 15.9–17.0
Seasonal swing summer↔winter11.6 °C
Max temp (day)22.7 °C 21.2–24.1
Min temp (night)11.1 °C 11.0–11.2
Precipitation16.9 mm/mo 12.2–21.7
Air humidity58.8 % 57.1–60.4
Moisture balance-117 mm/mo -131–-102
Vapour deficit779 Pa 719–840
Wind speed1.90 m/s 1.80–2.00
Cloud cover26.7 % 24.5–28.9
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 Facility1 751 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics7 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↗