Turnera diffusa, connu sous le nom de damiana, est une espèce de plantes à fleurs de la famille des passifloracées. C'est un arbuste originaire d'Amérique du Nord, du sud-ouest du Texas aux États-Unis jusqu'au Mexique, d'Amérique centrale, d'Amérique du Sud et des Caraïbes.
No narrative description available for this taxon yet.
Habitat GIFTÁrea Antrópica, Caatinga (stricto sensu), Campo de Altitude, Campo Rupestre, Carrasco, Cerrado (lato sensu), Floresta Ciliar ou Galeria, Floresta Estacional Semidecidual, Vegetação Sobre Afloramentos Rochosos
Woodinesswoody
Physiology & chemistry2
Nitrogen fixingnon_nitrogen_fixer
Wood density815 mg/cm³
03Chemical composition45 compounds
Compounds documented for Turnera diffusa 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 Turnera diffusa has left across the world's sequence archives.
At a glance
DNA specimens16
Marker genes6
GenBank sequences6
eDNA detections9
Countries4
The DNA barcodea real sequence read deposited for this species
Turnera diffusa var. diffusa voucher L. Rocha 395 (HUEFS) internal transcribed spacer 1, partial sequence; 5.8S ribosomal RNA gene, complete sequence; and internal transcribed spacer 2, 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.
★matK1★rbcL3★rbcLa★ITS2★ITS2trnH-psbA
plant barcodefungal barcodemarker
06Genome at a glanceCCDB · GoaT · TreeOfSex
The complete instruction manualTurnera diffusa 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.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy75% within 1 km
≤100 m 256≤1 km 73≤10 km 65>10 km 44
438 georeferenced · 179 without coordinates
Open the mapobservation + sensor617
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 accuracy92% within 1 km
≤100 m 590≤1 km 15≤10 km 43>10 km 8
656 georeferenced · 951 without coordinates
Open the institutions mapphysical evidence1 607
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy
no georeferenced coordinates · 1 records without
Open the mapnot free-living1
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 institutions58 of 100 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Durango, MX
239
Mexico City, MX
168
Bronx, US
121
Mexico City, MX
92
National Biodiversity Institute, Costa Ricalocation not on record
82
Laboratorio de Ictiologialocation not on record
80
Salvador, BR
69
Austin, US
69
UFBAlocation not on record
43
Ciudad de México, MX
38
Feira de Santana, BR
36
Universidade Federal do Rio Grande do Nortelocation not on record
35
San Jose State University, Museum of Birds and Mammalslocation not on record
34
University of Stellenboschlocation not on record
32
CEPLAClocation not on record
27
Miami, US
24
Kew, GB
22
Chapingo, MX
21
Riverside, US
21
Sociedad para el Estudio de los Recursos Bióticos de Oaxaca, A. C.location not on record
17
JBRJlocation not on record
17
Tapachula, MX
16
UNIVASFlocation not on record
15
Austin, US
15
UFRPElocation not on record
14
Empresa Pernambucana de Pesquisa Agropecuária, IPAlocation not on record
14
USP-IBlocation not on record
13
Tlalnepantla, MX
12
Juriquilla, MX
11
Antiguo Cuscatlán, SV
9
La Paz, MX
8
UnBlocation not on record
8
UNICAMPlocation not on record
7
EL PASO, US
7
Berlin, DE
7
LDlocation not on record
7
Mexico City, MX
6
Puebla, MX
6
Corrientes, AR
6
Tuxtla Gutiérrez, MX
6
Tuxtla Gutiérrez, MX
5
Cruz das Almas, BR
5
ASUlocation not on record
5
Culiacán, MX
4
Mexico City, MX
4
Chicago, US
4
Chongqing Museumlocation not on record
4
Montréal, CA
4
Cenargenlocation not on record
4
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
3
Brasília, BR
3
Bogotá, D.C., CO
3
Area de Conservacion Guanacastelocation not on record
3
UFMGlocation not on record
3
San Diego, US
3
Mérida, MX
3
CPATSAlocation not on record
3
San Francisco de Campeche, MX
3
Masindi, UG
2
Guatemala City, GT
2
Universidad Nacional Autonoma de Mexico, Instituto de Biologialocation not on record
2
Taipei, TW
2
Mazatlán, MX
2
Universidade Federal do Ceara, Departamento de Biologialocation not on record
2
Logan, US
2
Tempe, US
2
Wlocation not on record
2
Ilhéus, BR
2
Phoenix, US
2
Burlington, US
2
Chaguaramas, TT
2
Claremont, US
1
Edinburgh, GB
1
M-VascularPlantslocation not on record
1
Porto Alegre, BR
1
Davis, US
1
Mérida, MX
1
Arizona State University Biocollectionslocation not on record
1
Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record
1
Istituto Agrario Castelnuovolocation not on record
1
Brasília, BR
1
NO DISPONIBLElocation not on record
1
Ivano-Frankivsk, UA
1
Hermosillo, MX
1
Universidad Industrial de Santander (UIS)location not on record
1
Universidad Nacional de Colombia (UNAL)location not on record
1
UFPElocation not on record
1
Institut und Museum fuer Geologie und Palaeontologielocation not on record
1
Guasave, MX
1
Universidad Industrial de Santanderlocation not on record
1
Morelia, MX
1
Centro Cultural Santo Domingolocation not on record
1
Madison, US
1
Ensenada, MX
1
Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipaslocation not on record
1
UFSClocation not on record
1
Universidade Federal de Sergipe (UFS)location not on record
1
UESBlocation not on record
1
San Luis Obispo, US
1
Departamento de Sistematica e Ecologialocation not on record
1
100 institutions · 1 595 of 1 607 vouchered records shown · 12 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA9 detections
Where the DNA of Turnera diffusa 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 found9
Studies independent surveys1
Countries3
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 9 detections have coordinates
Open the map3 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 median24.9 °C 23.7–27.4
Seasonal swing summer↔winter2.00 °C
Max temp (day)26.6 °C 26.0–32.2
Min temp (night)23.4 °C 21.2–23.4
Precipitation127 mm/mo 114–170
Air humidity68.0 % 65.0–68.1
Moisture balance-20.2 mm/mo -20.2–39.8
Vapour deficit1,003 Pa 932–1,276
Wind speed2.70 m/s 1.10–4.00
Cloud cover30.9 % 29.1–33.6
CHELSA 1981–2010, ~9 km grid, at location & month of 6 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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 226 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI9 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics16 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
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
Tree of SexTree of Sex Consortiumgenome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗