Dendrobium tetragonum

A.Cunn. · species

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Plantae/Tracheophyta/Liliopsida/Asparagales/Orchidaceae/Dendrobium

At a glance

Occurrence records809

Data sources4

Biological traits26

DNA specimens0

eDNA detections11

Sources4 archives

Databases and archives Dendrobium tetragonum's data was compiled from.

GBIFGlobal Biodiversity Information Facility809 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI11 eDNA detections↗

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

PloiDBPloidy Databasegenome & karyotype

On this page4 sections

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

Traits & measurements4 literature sources26 traits

Occurrence & distributionGBIF809 records

Environmental DNA1 datasets · 1 countries11 detections

Genome at a glanceCCDB2n = 38

02Traits & measurements

SourcesWCVPAusTraitsGIFTTRY

Size & morphology8

Leaf length55 mm

Leaf length max90 mm

Leaf length min30 mm

Leaf size333 mm²

Leaf width20 mm

Leaf width max25 mm

Leaf width min15 mm

Seed mass0.01 mg

Life cycle & reproduction6

Deciduousnessevergreen

Dispersal typeself

Flowering timennnnnnnnyynn

Life formpseudobulbous epiphyte

Life spanperennial

Sex typehermaphrodite

Diet & foraging1

Parasiteindependent

Habitat & environment11

Aquaticterrestrial

Climatewet tropical

Climberself-supporting

Epiphyteobligatory

Fruit fleshinessdry

Fruit typecapsule

Growth formherb

⚠ sources differ — GIFT: herb · AusTraits: herb · TRY: Epiphyte

Leaf compoundnesssimple

Leaf shapeelliptical

Mycorrhiza typeE.t.end.

Woodinessnon-woody

05DNA & barcoding11 eDNA hits

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 Dendrobium tetragonum has left across the world's sequence archives.

At a glance

eDNA detections11

Countries1

06Genome at a glanceCCDB

The complete instruction manual Dendrobium tetragonum 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 = 38 n = 19

Ploidypolyploid inferred

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

2n 381×CCDB · ipcn-api-dl

CCDB · ipcn-api-dl — Hashimoto, K. 1981. Chromosome count in Dendrobium I. 87 species. Bull. Hiroshima Bot. Gard. 4: 63–80.

Ploidy records — measured levels and diploid/polyploid inferences · click for sources

polyploid inferred1×PloiDB · family-scale

PloiDB · family-scale — chromEvol; reliability=1.000 ↗

08Occurrence & distribution

Record type809 records

Wild obs. + sensor470

Museum / vouchered297

Cultivated / captive42

Origin

Native27

Introduced1

Range

Area of Occupancy AOO2 144 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 accuracy45% within 1 km

≤100 m 182≤1 km 25≤10 km 26>10 km 229

462 georeferenced · 8 without coordinates

Open the mapobservation + sensor470

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 accuracy9% within 1 km

≤100 m 3≤1 km 22≤10 km 247>10 km 15

287 georeferenced · 10 without coordinates

Open the institutions mapphysical evidence297

Cultivated / Captivenot free-living

A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.

Coordinate accuracy60% within 1 km

≤1 km 25≤10 km 13>10 km 4

42 georeferenced

Open the mapnot free-living42

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 institutions9 of 10 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	91
Canberra, AU	86
Smithfield, AU	50
Mount Annan, AU	28
Museo Entomologico de Leonlocation not on record	27
Armidale, AU	6
Adelaide, AU	5
Christchurch, NZ	2
Hobart, AU	1
Palmerston, AU	1

10 institutions · 297 of 297 vouchered records shown

Cultivated / Captivenot free-living

A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.

09Environmental DNA11 detections

Where the DNA of Dendrobium tetragonum 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 found11

Studies independent surveys1

Countries1

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

Where its DNA was found

0 of 11 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 median21.9 °C 21.9–21.9

Seasonal swing summer↔winter18.4 °C

Max temp (day)28.5 °C

Min temp (night)15.0 °C

Precipitation15.6 mm/mo

Air humidity43.4 %

Moisture balance-143 mm/mo

Vapour deficit1,624 Pa

Wind speed4.00 m/s

Cloud cover18.1 %

CHELSA 1981–2010, ~9 km grid, at location & month of 7 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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