Spermacoce remota, the woodland false buttonweed, is a species of plant in the Rubiaceae.Lamarck, J.B.A.P. de Monnet de in Lamarck, J.B.A.P. de Monnet de & Poiret, J.L.M. (1791) Tableau Encyclopedique et Methodique 1(1): 273 It is native to the southeastern United States (Texas, Florida, Georgia, Alabama), West Indies (Bermuda, Bahamas, Hispaniola, Puerto Rico, the Cayman Islands, Trinidad, Lesser Antilles, etc.), Mexico, Central America and South America. It is naturalized in Taiwan, Southeast Asia (Thailand, Vietnam, Malaysia, Indonesia), China (Guangdong), India, Sri Lanka, New Guinea, Mauritius and many other oceanic islands (including Hawaii and the Galápagos).Kew World Checklist of Selected Plant Families, Spermacoce remota Spermacoce remota is a perennial herb or sub-shrub up to 70 cm tall. Stems are either round or square in cross-section. Leaves are lanceolate, up to 5 cm long. Flowers are small, white, in a clump at the top of the stem.Flora of China, v 19 p 329, 光叶丰花草 guang ye feng hua cao, Spermacoce remota This herb is a common ground for oviposition of butterfly eggs, such as those of Anartia fatima.
No narrative description available for this taxon yet.
Compounds documented for Spermacoce remota across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile1 class
Iridoids monoterpenoids1
Documented compounds1 total
Compound
Class
Amount
Source
Asperulosidic Acid
present
LOTUS
05DNA & barcoding10 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 Spermacoce remota has left across the world's sequence archives.
At a glance
DNA specimens10
Marker genes4
eDNA detections6
Countries2
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★rbcLa★ITS★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualSpermacoce remota 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 = 28 n = 14
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 281×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Kiehn, M. 1996. Chromosomes of Rubiaceae occurring in Malesia, the Philippines, New Guinea, and the Pacific. Opera Bot. Belg. 7: 249–260.
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
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 2 445≤1 km 394≤10 km 153>10 km 204
3 196 georeferenced · 1 186 without coordinates
Open the mapobservation + sensor4 382
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 accuracy56% within 1 km
≤100 m 107≤1 km 54≤10 km 106>10 km 19
286 georeferenced · 1 176 without coordinates
Open the institutions mapphysical evidence1 462
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 institutions57 of 101 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Saint Louis, US
298
National Biodiversity Institute, Costa Ricalocation not on record
117
Puerto Ayora, EC
78
Brisbane, AU
70
Museo Nacional de Costa Rica (MNCR)location not on record
57
Universidad Nacional de Colombia (UNAL)location not on record
52
Canberra, AU
46
Palmerston, AU
41
Bronx, US
35
University of Stellenboschlocation not on record
32
Kew, GB
31
León, NI
26
Xiamen, CN
22
Smithfield, AU
20
Mexico City, MX
20
San José, CR
19
Durham, US
16
BISHlocation not on record
14
Honolulu, US
13
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
11
MeiseBGlocation not on record
10
Jardín Botánico de Cartagena "Guillermo Piñeres" (JBC)location not on record
8
Chongqing Museumlocation not on record
7
Taipei, TW
7
MEXUlocation not on record
7
Universidad Pedagógica y Tecnológica de Colombia (UPTC)location not on record
7
Odawara, JP
7
Berlin, DE
6
Kensington, AU
6
Corporación Autónoma Regional Para la Defensa de la Meseta de Bucaramanga (CDMB)location not on record
5
Universiti Sains Malaysialocation not on record
5
Mount Annan, AU
5
Instituto para la Investigación y la Preservación del Patrimonio Cultural y Natural del Valle del Cauca - INCIVAlocation not on record
5
Antiguo Cuscatlán, SV
5
Altos de Pipe, VE
5
ASUlocation not on record
4
Davis, US
4
Aarhus, DK
4
Universidad Industrial de Santander (UIS)location not on record
4
EL PASO, US
4
Dekalb, US
4
Nishihara, JP
3
Cusco, PE
3
Tuxtla Gutiérrez, MX
3
Guatemala City, GT
3
Stockholm, SE
3
Area de Conservacion Guanacastelocation not on record
3
Universidad Nacional Autonoma de Mexico, Instituto de Biologialocation not on record
3
Giardini Botanici Hanburylocation not on record
3
National Institute of Biological Resourceslocation not on record
2
GAlocation not on record
2
Loja, EC
2
Jena Microbial Resource Collectionlocation not on record
2
Durham, US
2
Durango, MX
2
Chicago, US
2
FLASlocation not on record
2
Austin, US
2
Cambridge, US
2
Universidad Nacional Agrarialocation not on record
2
Göteborg, SE
2
Universidad de Antioquia (UdeA)location not on record
2
Museo Entomologico de Leonlocation not on record
2
Riverside, US
1
OTSlocation not on record
1
Lima, PE
1
Madison, US
1
Riobamba, EC
1
Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH)location not on record
1
McWane Science Centerlocation not on record
1
UCAMlocation not on record
1
Corrientes, AR
1
MAlocation not on record
1
QCNElocation not on record
1
IEBlocation not on record
1
Kochi, JP
1
BMlocation not on record
1
Iquitos, PE
1
Armidale, AU
1
Anton de Kom University of Surinamelocation not on record
1
Christchurch, NZ
1
Phoenix, US
1
University of Iowalocation not on record
1
Calabar, NG
1
Tampa, US
1
Frankfurt am Main
1
Miami, US
1
Hobart, AU
1
CASlocation not on record
1
Adelaide, AU
1
HUT Culture Collectionlocation not on record
1
Chadron, US
1
St. Augustine, TT
1
Columbia, US
1
Severin-McDaniel Insect Collectionlocation not on record
1
Beijing Normal Universitylocation not on record
1
HEMlocation not on record
1
Pontificia Universidad Javeriana (PUJ)location not on record
1
La Trobe Universitylocation not on record
1
Paris, FR
1
Herbario Selva Central Oxapampa - estación biológica del Jardín Botánico de Missourilocation not on record
1
101 institutions · 1 227 of 1 462 vouchered records shown · 157 without an institution code
09Environmental DNA6 detections
Where the DNA of Spermacoce remota 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 found6
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 6 detections have coordinates
Open the map1 country0
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 median24.6 °C 23.2–25.5
Seasonal swing summer↔winter5.40 °C
Max temp (day)30.0 °C 28.8–31.0
Min temp (night)19.8 °C 18.9–21.4
Precipitation35.0 mm/mo 29.3–120
Air humidity59.9 % 59.1–62.9
Moisture balance-65.9 mm/mo -101–6.50
Vapour deficit1,212 Pa 1,129–1,280
Wind speed1.70 m/s 1.30–1.90
Cloud cover28.3 % 25.1–32.2
CHELSA 1981–2010, ~9 km grid, at location & month of 4 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 Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility5 769 records↗
OBISOcean Biodiversity Information System78 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI6 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics10 specimens↗
LOTUSNatural Products (Wikidata)compounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
WikidataWikimedia Foundationstructured facts↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗