Stillingia texana

I.M.Johnst. · species

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Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Euphorbiaceae/Stillingia

At a glance

Occurrence records3 221

Data sources11

Biological traits13

DNA specimens5

eDNA detections2

Sources11 archives

Databases and archives Stillingia texana's data was compiled from.

WikipediaWikimedia Foundation2 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility3 221 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics5 specimens↗

GRIN TaxonomyUSDA-ARSdistribution & uses↗

Open Tree of LifeOpenTreephylogeny backbone↗

CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗

GoaTGenomes on a Tree · Sangergenome & karyotype↗

NCBIUS National Library of Medicinegenome & karyotype↗

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page6 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements3 literature sources13 traits

Occurrence & distributionGBIF3 221 records

Environmental DNA1 datasets · 1 countries2 detections

DNA & barcodingBOLD5 specimens

Genome at a glanceCCDB · GoaT · NCBI≈3.5 Gbp

01Narrative

Stillingia texana, the Texas toothleaf, is a species of flowering plant in the family Euphorbiaceae. It is native to the South Central United States and Mexico. In central Texas it is widespread in upland, calcareous prairies, spreading north to scattered locations in Oklahoma and south to Coahuila. Stillingia texana was described in 1923 by Ivan Murray Johnston. Stillingia texana flowers.jpg|Flowers

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPTRYGIFT

Size & morphology3

Seed mass22.82 mg

Seed mass max22.82 mg

Seed mass min22.82 mg

Life cycle & reproduction3

Life formperennial or subshrub

Life spanperennial

Lifeform raunkiaer detailedchamaephyte

Diet & foraging1

Parasiteindependent

Habitat & environment6

Aquaticterrestrial

Climatedesert or dry shrubland

Climberself-supporting

Epiphyteterrestrial

Growth formherb

Woodinessnon-woody

05DNA & barcoding5 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 Stillingia texana has left across the world's sequence archives.

At a glance

DNA specimens5

Marker genes4

eDNA detections2

Countries1

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★ITS2trnH-psbA

plant barcodefungal barcodemarker

06Genome at a glanceCCDB · GoaT · NCBI

The complete instruction manual Stillingia texana 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.

Genome sizehow big the whole instruction manual is

Genome size≈3 545 434 078 bp assembly estimate

Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).

BACTERIUM Carsonella ruddii0.00016 Gb

FUNGUS0.04 Gb

INSECT0.25 Gb

HUMAN3.2 Gb

THIS GENOME Stillingia texana3.55 Gb

WHEAT17 Gb

FERN Tmesipteris160.45 Gb

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 = 72 n = 36

Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references

2n 721×CCDB · Automatic manuscript search

CCDB · Automatic manuscript search — L. Urbatsch,J. Bacon,R. Hartman,M. C. Johnston,T. Watson and G. Webster. 1975. "CHROMOSOME NUMBERS FOR NORTH AMERICAN EUPHORBIACEAE". American Journal of Botany 62:494-500.

Sequencing statusassembly quality — how far to trust these numbers

Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.

Assembly levelContig

08Occurrence & distribution

Record type3 221 records

Wild obs. + sensor2 813

Museum / vouchered408

Range

Area of Occupancy AOO5 300 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 accuracy86% within 1 km

≤100 m 1 694≤1 km 253≤10 km 110>10 km 215

2 272 georeferenced · 541 without coordinates

Open the mapobservation + sensor2 813

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 accuracy20% within 1 km

≤100 m 15≤1 km 33≤10 km 149>10 km 40

237 georeferenced · 171 without coordinates

Open the institutions mapphysical evidence408

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 institutions32 of 40 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Fort Worth, US	103
Austin, US	89
Bronx, US	48
BAYLUlocation not on record	36
Chicago, US	35
Madison, US	17
Wuzhou, CN	8
Texas Lutheran Universitylocation not on record	6
Riverside, US	5
EL PASO, US	5
Davis, US	5
Lubbock, US	4
Chongqing Museumlocation not on record	4
St. Paul, US	4
San Angelo, US	3
Saint Louis, US	3
University of Stellenboschlocation not on record	3
Denton, US	3
Pittsburg, US	2
Philadelphia, US	2
Stephenville, US	2
Logan, US	1
Chapel Hill, US	1
Mississippi State, US	1
Mexico City, MX	1
Jackson, US	1
Tempe, US	1
DOI/NPS, Colonial National Historical Parklocation not on record	1
Tampa, US	1
Minia, EG	1
Irvine, US	1
Chapingo, MX	1
GB	1
Little Rock, US	1
Miami, US	1
Austin, US	1
MeiseBGlocation not on record	1
Texas Lutheran Universitylocation not on record	1
Bloomington, US	1
Smithsonian Institution, National Museum of Natural Historylocation not on record	1

40 institutions · 406 of 408 vouchered records shown · 2 without an institution code

09Environmental DNA2 detections

Where the DNA of Stillingia texana 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 found2

Studies independent surveys1

Countries1

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 2 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 median25.7 °C 23.4–27.9

Seasonal swing summer↔winter19.7 °C

Max temp (day)31.2 °C 29.2–33.2

Min temp (night)20.9 °C 18.7–23.1

Precipitation93.2 mm/mo 75.5–111

Air humidity57.5 % 57.1–57.9

Moisture balance-89.1 mm/mo -112–-66.7

Vapour deficit1,418 Pa 1,244–1,591

Wind speed3.70 m/s 2.80–4.60

Cloud cover28.3 % 22.6–34.0

CHELSA 1981–2010, ~9 km grid, at location & month of 2 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.

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Stillingia texana

At a glance

Sources11 archives

Size & morphology3

Life cycle & reproduction3

Diet & foraging1

Habitat & environment6

At a glance

Genome sizehow big the whole instruction manual is

Chromosomes & ploidyhow the DNA is packaged

Sequencing statusassembly quality — how far to trust these numbers

Record type3 221 records

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions32 of 40 geolocated

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type3 221 records