Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
NarrativeWikipediaarticle
Traits & measurements3 literature sources16 traits
Chemical compositionLOTUS3 compounds
Occurrence & distributionGBIF6 125 records
DNA & barcodingNCBIsequences
Genome at a glanceCCDB2n = 16
01Narrative
Clematis drummondii is a species of flowering plant in the buttercup family, Ranunculaceae, that is native to the Southwestern United States (Arizona, New Mexico, and Texas) and northern Mexico. Common names include old man's beard, Texas virgin's bower, and barba de chivato. It is a white-flowered vine that can be found clambering among other wildflowers, on shrubs and on fence rows. The natural habitat of C. drummondii includes the Chihuahuan and Sonoran deserts as well as prairies and grasslands. The sap of this plant is caustic, although its foliage, stems, and roots can be used for dye if caution is used while handling and if breathing the fumes is avoided.Sonoran Desert Wildflowers, Richard Spellenberg, 2nd ed., 2012, p. 68Trees, Shrubs, and Woody Vines of the Southwest: A Guide For the States of Arkansas, Louisiana, New Mexico, Oklahoma, and Texas, Robert A. Vines, The University of Texas at Austin, 1960, .A Practical Guide to Edible &Useful Plants, Delena Tull, Texas Monthly Press, 1987, .
No narrative description available for this taxon yet.
Compounds documented for Clematis drummondii across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile2 classes
Hydrocarbons2
Cholestane steroids $ Stigmastane steroids1
Documented compounds3 total
Compound
Class
Amount
Source
Dotriacontane
present
LOTUS
Octacosane
present
LOTUS
Stigmasterol
present
LOTUS
05DNA & barcoding4 sequences
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 Clematis drummondii has left across the world's sequence archives.
At a glance
Marker genes2
GenBank sequences4
Countries1
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.
★rbcL2★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualClematis drummondii 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.
Chromosomes2n = 16 n = 8
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
n 81×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Ward, D. E. & R. W. Spellenberg. 1986. Chromosome counts of angiosperms of western North America. Phytologia 61: 119–125.
Ploidy records — measured levels and diploid/polyploid inferences · click for 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 origin1.22 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 type6 125 records
Wild obs. + sensor5 042
Museum / vouchered1 083
Range
Area of Occupancy AOO10 728 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 accuracy89% within 1 km
≤100 m 3 245≤1 km 461≤10 km 141>10 km 325
4 172 georeferenced · 870 without coordinates
Open the mapobservation + sensor5 042
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 accuracy62% within 1 km
≤100 m 236≤1 km 88≤10 km 162>10 km 40
526 georeferenced · 557 without coordinates
Open the institutions mapphysical evidence1 083
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 institutions50 of 69 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Austin, US
172
ASUlocation not on record
114
Durango, MX
63
Bronx, US
62
Fort Worth, US
54
Saint Louis, US
53
Texas Lutheran Universitylocation not on record
47
Phoenix, US
39
Mexico City, MX
37
Guasave, MX
36
Austin, US
32
EL PASO, US
32
Juriquilla, MX
26
Mexico City, MX
25
Riverside, US
25
Albuquerque, US
23
BAYLUlocation not on record
23
San Diego, US
20
Hermosillo, MX
14
CASlocation not on record
14
Tampa, US
14
Flagstaff, US
11
Lubbock, US
10
San Angelo, US
10
Claremont, US
9
La Paz, MX
9
Giardini Botanici Hanburylocation not on record
8
Bloomington, US
7
Chongqing Museumlocation not on record
7
Tlalnepantla, MX
6
San Luis Obispo, US
5
Jena Microbial Resource Collectionlocation not on record
5
DOI/NPS, Greenbelt Parklocation not on record
4
University of Stellenboschlocation not on record
4
Anchorage, US
4
Instituto de Ecología, Universidad Nacional Autónoma de Méxicolocation not on record
4
Chapingo, MX
4
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
3
Philadelphia, US
3
Wuzhou, CN
3
Zacatecas, MX
3
Provo, US
2
Davis, US
2
Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipaslocation not on record
2
Auckland, NZ
2
St. Paul, US
2
Ensenada, MX
1
Moscow, US
1
The University of Arizonalocation not on record
1
DOI/NPS, Colonial National Historical Parklocation not on record
1
Northridge, US
1
South Kensington, GB
1
LDlocation not on record
1
Denton, US
1
San Francisco, US
1
Mexico City, MX
1
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
1
Burlington, US
1
Valdosta State Universitylocation not on record
1
Autlán de Navarro, MX
1
GAlocation not on record
1
Culiacán, MX
1
Mérida, MX
1
US
1
Pittsburg, US
1
Arizona State University Biocollectionslocation not on record
1
Linares, MX
1
Angwin, US
1
Pocatello, US
1
69 institutions · 1 077 of 1 083 vouchered records shown · 6 without an institution code
WikipediaWikimedia Foundation2 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility6 125 records↗
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↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗