Phyllanthus polygonoides, known as smartweed leaf-flower or knotweed leafflower, is an herbaceous perennial plant in the family Phyllanthaceae. It grows from 10 to 50 centimeters in height. It is native to the United States (Arizona, New Mexico, Texas, Oklahoma, Arkansas, Missouri, and Louisiana) and northern and central Mexico. Smartweed leaf-flower grows in a variety of habitats throughout its range, including grasslands, shrublands (including the Chihuahuan Desert), and glades in forests. It is often associated with limestone and calcareous soils. It is morphologically similar to the closely related species, pinewoods dainties (Phyllanthus liebmannianus). In the United States these species are allopatrically distributed, but there is a zone of overlap in the ranges of the two species in central Mexico.
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 Phyllanthus polygonoides has left across the world's sequence archives.
At a glance
DNA specimens9
Marker genes3
GenBank sequences2
eDNA detections9
Countries1
The DNA barcodea real sequence read deposited for this species
Nellica polygonoides voucher Kim & Miller 1078 (U) 18S ribosomal RNA gene, partial sequence; internal transcribed spacer 1, 5.8S ribosomal RNA gene, and internal transcribed spacer 2, complete sequence; and 28S ribosomal RNA gene, 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★rbcL★ITS1
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualPhyllanthus polygonoides 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 accuracy87% within 1 km
≤100 m 1 239≤1 km 126≤10 km 38>10 km 169
1 572 georeferenced · 416 without coordinates
Open the mapobservation + sensor1 988
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 accuracy41% within 1 km
≤100 m 113≤1 km 84≤10 km 198>10 km 81
476 georeferenced · 469 without coordinates
Open the institutions mapphysical evidence945
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 institutions45 of 61 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
256
Fort Worth, US
145
Bronx, US
114
BAYLUlocation not on record
50
Texas Lutheran Universitylocation not on record
34
Albuquerque, US
33
EL PASO, US
27
Wuzhou, CN
26
Austin, US
22
San Angelo, US
22
Lubbock, US
20
Madison, US
20
Durango, MX
19
Mexico City, MX
15
Saint Louis, US
14
ASUlocation not on record
12
Riverside, US
11
Claremont, US
9
Chongqing Museumlocation not on record
8
Texas Lutheran Universitylocation not on record
7
Philadelphia, US
6
Kew, GB
5
Ann Arbor, US
5
Davis, US
4
Giardini Botanici Hanburylocation not on record
4
Phoenix, US
4
Anchorage, US
3
Hermosillo, MX
3
MeiseBGlocation not on record
2
Bangkok, TH
2
Little Rock, US
2
San Luis Obispo, US
2
Chapel Hill, US
2
CASlocation not on record
2
Chadron, US
2
Jena Microbial Resource Collectionlocation not on record
2
Denton, US
2
Los Angeles, US
2
Stephenville, US
2
Canadian Department of Agriculturelocation not on record
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
Linares, MX
1
Pomona Collegelocation not on record
1
Moscow, US
1
Taipei, TW
1
Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahualocation not on record
1
Provo, US
1
Emporia, US
1
Miami, US
1
University of Stellenboschlocation not on record
1
Mississippi State, US
1
Tampa, US
1
US
1
Guasave, MX
1
Torreón, MX
1
Burlington, US
1
Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipaslocation not on record
1
DOI/NPS, Greenbelt Parklocation not on record
1
Flagstaff, US
1
Bloomington, US
1
Logan, US
1
61 institutions · 942 of 945 vouchered records shown · 3 without an institution code
09Environmental DNA9 detections
Where the DNA of Phyllanthus polygonoides 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
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 9 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 median27.2 °C 24.5–28.0
Seasonal swing summer↔winter18.2 °C
Max temp (day)32.3 °C 29.9–33.2
Min temp (night)22.8 °C 20.0–23.3
Precipitation97.5 mm/mo 76.2–110
Air humidity59.8 % 58.0–60.2
Moisture balance-71.4 mm/mo -90.6–-67.6
Vapour deficit1,464 Pa 1,229–1,530
Wind speed2.90 m/s 2.70–3.50
Cloud cover29.3 % 22.8–33.1
CHELSA 1981–2010, ~9 km grid, at location & month of 8 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 933 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI9 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics9 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗