Garrya congdonii, the chaparral silktassel or Congdon silktassel, a fairly common evergreen shrub native to the northern California Coast Ranges, is one of a small biological family of approximately twenty known species in the family Garryaceae, most of which are Garrya. While the female and male sexual organs of Congdon silktassel are on separate plants, the pendant male catkins are much more showy. This plant is reasonably attractive and neat enough in its growing habit to be appealing as a landscape species. It is stocked commonly at commercial plant nurseries. All Garrya are associated with warm temperate regions of North America.
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 Garrya flavescens has left across the world's sequence archives.
At a glance
DNA specimens6
Marker genes5
GenBank sequences5
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.
★matK1★rbcL1★rbcLa★ITS3★ITS2
plant barcodefungal barcode
08Occurrence & distribution
Record type2 082 records
Wild obs. + sensor1 114
Museum / vouchered968
Origin
Native83
Range
Area of Occupancy AOO3 796 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 accuracy91% within 1 km
≤100 m 642≤1 km 69≤10 km 47>10 km 24
782 georeferenced · 332 without coordinates
Open the mapobservation + sensor1 114
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 accuracy61% within 1 km
≤100 m 52≤1 km 218≤10 km 159>10 km 11
440 georeferenced · 528 without coordinates
Open the institutions mapphysical evidence968
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 institutions47 of 64 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
108
Claremont, US
105
Riverside, US
85
ASUlocation not on record
79
San Diego, US
61
Flagstaff, US
48
Phoenix, US
44
San Luis Obispo, US
29
Bronx, US
26
US
25
Davis, US
23
CASlocation not on record
22
Los Angeles, US
18
Canadian Department of Agriculturelocation not on record
16
Severin-McDaniel Insect Collectionlocation not on record
15
Long Beach, US
11
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
9
Irvine, US
9
Provo, US
8
Orem, US
7
Henderson, US
7
Arcata, US
6
San Jose State University, Museum of Birds and Mammalslocation not on record
5
Albuquerque, US
4
Saint Louis, US
4
University of Stellenboschlocation not on record
4
EL PASO, US
4
Denver, US
3
Pocatello, US
3
Northridge, US
3
Bangkok, TH
3
USFSlocation not on record
3
STNFlocation not on record
2
Logan, US
2
DOI/NPS, Colonial National Historical Parklocation not on record
2
Wuzhou, CN
2
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
2
Philadelphia, US
2
Moscow, US
2
San Angelo, US
2
Mérida, MX
2
Boise, US
2
San Bernardino, US
2
Santa Cruz, US
2
Pullman, US
2
Mexico City, MX
1
San Diego Natural History Museum, Herbariumlocation not on record
1
Chicago, US
1
Austin, US
1
Durham, US
1
San Jose, US
1
Bureau of Land Managementlocation not on record
1
Ensenada, MX
1
Angwin, US
1
Eastern Nevada Landscape Coalitionlocation not on record
1
Chadron, US
1
Durango, US
1
Burlington, US
1
Weber State Universitylocation not on record
1
Madison, US
1
US
1
University of Southern Mississippilocation not on record
1
Caldwell, US
1
BAYLUlocation not on record
1
64 institutions · 842 of 968 vouchered records shown · 124 without an institution code
09Environmental DNA4 detections
Where the DNA of Garrya flavescens 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
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 4 detections have coordinates
Open the map2 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.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median15.7 °C 13.1–20.5
Seasonal swing summer↔winter16.0 °C
Max temp (day)22.0 °C 19.1–28.6
Min temp (night)9.00 °C 8.40–13.4
Precipitation34.7 mm/mo 13.8–70.6
Air humidity50.9 % 41.1–56.1
Moisture balance-93.3 mm/mo -169–-49.3
Vapour deficit884 Pa 763–1,454
Wind speed4.10 m/s 2.70–5.50
Cloud cover25.5 % 17.6–34.5
CHELSA 1981–2010, ~9 km grid, at location & month of 3 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 082 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics6 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
WikidataWikimedia Foundationstructured facts↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗