Merremia tridentata est une espèce de plantes dicotylédones de la famille des Convolvulaceae, originaire des régions tropicales d'Afrique. c'est une plante herbacée vivace aux tiges allongées, présentant parfois des racines tubérisées. Elle est utilisée en médecine traditionnelle, notamment en Inde, pour soigner diverses affections telles que l'arthrite, les infections de la peau, l'inflammation, la fièvre, le diabète, la diarrhée, les troubles urinaires, et également utilisés pour améliorer la croissance des cheveux. Des flavonoïdes ont été isolés des parties aériennes de la plante, parmi lesquels la diosmétine, la lutéoline, la diosmétine-7-o-β-d-glucoside, la lutéoline-7-o-β-d-glucoside. La plante aurait des activités antidiabétiques, anti-inflammatoires, antiarthritiques, cicatrisantes, analgésiques et antimicrobiennes.
No narrative description available for this taxon yet.
Habitat GIFTgrassland and wooded grassland, often on sandy soil, rocky places in Commiphora-Markhamia scrub, sandy places near coast
Leaf compoundnesssimple
Leaf shapelinear narrowly_triangular
Mycorrhiza typearbuscular
Woodinessnon-woody
Physiology & chemistry2
Nitrogen fixingnon_nitrogen_fixer
Photosynthetic pathwayC3
05DNA & barcoding15 specimens
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 Xenostegia tridentata has left across the world's sequence archives.
At a glance
DNA specimens15
Marker genes5
eDNA detections16
Countries4
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★trnL★ITS
plant barcodefungal barcode
08Occurrence & distribution
Record type2 699 records
Wild obs. + sensor1 267
Museum / vouchered1 320
Cultivated / captive1
Other111
Origin
Native41
Range
Area of Occupancy AOO7 488 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 570≤1 km 91≤10 km 31>10 km 33
725 georeferenced · 542 without coordinates
Open the mapobservation + sensor1 267
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 accuracy39% within 1 km
≤100 m 227≤1 km 83≤10 km 429>10 km 58
797 georeferenced · 523 without coordinates
Open the institutions mapphysical evidence1 320
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy0% within 1 km
>10 km 1
1 georeferenced
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 institutions36 of 74 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Brisbane, AU
293
Palmerston, AU
197
Kensington, AU
99
Museo Entomologico de Leonlocation not on record
91
Canberra, AU
88
Paris, FR
80
Kew, GB
58
Saint Louis, US
58
Smithfield, AU
40
Guangzhou, CN
33
Baroda, IN
33
Bronx, US
25
Guilin, CN
19
WAGlocation not on record
18
Adelaide, AU
12
James Cook Townsvillelocation not on record
10
Xiamen, CN
9
Embrapa Agrobiology Diazothrophic Microbial Culture Collectionlocation not on record
9
Mount Annan, AU
8
LBVlocation not on record
8
Taipei, TW
6
University of Stellenboschlocation not on record
5
John T. Waterhouse Herbariumlocation not on record
5
TAIElocation not on record
5
Honolulu, US
4
Pretoria, ZA
4
Taipei, TW
4
MAlocation not on record
4
Stockholm, SE
4
Elocation not on record
4
Sydney, AU
3
Uppsala, SE
3
Chongqing Museumlocation not on record
3
Edinburgh, GB
2
BRLUlocation not on record
2
Université National du Béninlocation not on record
2
Guangxi Institute of Traditional Medical and Pharmaceutical Scienceslocation not on record
2
Clocation not on record
2
LDlocation not on record
2
Plocation not on record
2
Montpellier, FR
1
STUlocation not on record
1
BGPAlocation not on record
1
MeiseBGlocation not on record
1
South Kensington, GB
1
Yaoundé, CM
1
San Diego, US
1
Staples, G. (BISH), 2003.location not on record
1
Institute for Agricultural Research of Mozambiquelocation not on record
1
Guangzhou, CN
1
Coimbra, PT
1
NGCPR01773location not on record
1
Kunming, CN
1
Pondicherry, IN
1
University of Johannesburglocation not on record
1
LSFlocation not on record
1
Hobart, AU
1
Arusha, TZ
1
Calabar, NG
1
Dresden, DE
1
Riverside, US
1
PHlocation not on record
1
LUAlocation not on record
1
TNMlocation not on record
1
Glocation not on record
1
LISClocation not on record
1
University of Oxfordlocation not on record
1
Parc Botanique et Zoologique de Tsimbazaza (PBZT)location not on record
1
EAlocation not on record
1
Servico de Microbiologia e Imunologialocation not on record
1
University of Hamburglocation not on record
1
Botanic Gardenlocation not on record
1
IPA/SPlocation not on record
1
Botanical Garden "Anastasie Fatu" of Iasilocation not on record
1
74 institutions · 1 290 of 1 320 vouchered records shown · 28 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 DNA16 detections
Where the DNA of Xenostegia tridentata 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 found16
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 16 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 median25.5 °C 20.6–26.5
Seasonal swing summer↔winter16.5 °C
Max temp (day)29.6 °C 26.2–30.3
Min temp (night)20.4 °C 14.5–22.6
Precipitation109 mm/mo 50.3–248
Air humidity58.4 % 51.6–63.1
Moisture balance-17.8 mm/mo -60.1–124
Vapour deficit1,271 Pa 1,093–1,512
Wind speed1.80 m/s 1.50–2.50
Cloud cover31.1 % 18.5–38.9
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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 699 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI16 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics15 specimens↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗