Cadiscus aquaticus

E.Mey. ex DC. · species

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Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Cadiscus

At a glance

Occurrence records10

Data sources6

Biological traits10

DNA specimens0

eDNA detections10

Sources6 archives

Databases and archives Cadiscus aquaticus's data was compiled from.

WikipediaWikimedia Foundation2 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility10 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI10 eDNA detections↗

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

PloiDBPloidy Databasegenome & karyotype

On this page5 sections

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

NarrativeWikipediaarticle

Traits & measurements2 literature sources10 traits

Occurrence & distributionGBIF10 records

Environmental DNA1 datasets · 1 countries10 detections

Genome at a glanceCCDB2n = 20

01Narrative

Senecio cadiscus is a species of aquatic flowering plant in the aster family, Asteraceae. It is endemic to the Western Cape of South Africa, where it grows in vernal pools. It was at one time classified as Cadiscus aquaticus, the only species in the monotypic genus Cadiscus, but molecular phylogenetic analysis showed that it is nested within Senecio. It is a floating or emergent plant with small narrow leaves and white-rayed flowers. Its populations are small and fragmented, and are declining. The plant is threatened by grazing and trampling by livestock, invasive plants, reclamation of wetlands and eutrophication from fertilizer runoff. The International Union for Conservation of Nature has consequently rated it as "critically endangered".

No narrative description available for this taxon yet.

02Traits & measurements

SourcesGIFTTRY

Size & morphology1

Plant height min1.05 m

Life cycle & reproduction2

Life spanannual

Raunkiær life formtherophyte

Diet & foraging1

Parasiteindependent

Habitat & environment5

Aquaticterrestrial

Climberself-supporting

Epiphyteterrestrial

Growth formherb

Woodinessnon-woody

Other traits1

Plant support typefree-standing

05DNA & barcoding10 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 Cadiscus aquaticus has left across the world's sequence archives.

At a glance

eDNA detections10

Countries1

06Genome at a glanceCCDB

The complete instruction manual Cadiscus aquaticus 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 = 20 n = 10

Ploidydiploid inferred

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

n 101×CCDB · book-ipcn67-71

CCDB · book-ipcn67-71 — ORNDUFF, R., T. MOSQUIN, D. W. KYHOS, & P. H. RAVEN. 1967. Chromosome numbers in Compositae. VI. Senecioneae. II. Am. Jour. Bot. 54: 205-213.

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

diploid inferred1×PloiDB · family-scale

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

08Occurrence & distribution

Record type10 records

Museum / vouchered10

Range

Area of Occupancy AOO28 km²

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 accuracy

no georeferenced coordinates · 10 records without

Open the institutions mapphysical evidence10

10Collections & institutions

Holding institutions4 of 4 geolocated

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

Institution	Specimens
Pretoria, ZA	6
Cape Town, ZA	2
Bronx, US	1
Cape Town, ZA	1

4 institutions · 10 of 10 vouchered records shown

09Environmental DNA10 detections

Where the DNA of Cadiscus aquaticus 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 found10

Studies independent surveys1

Countries1

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

Where its DNA was found

0 of 10 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 median18.8 °C 18.8–18.8

Seasonal swing summer↔winter15.6 °C

Max temp (day)26.6 °C

Min temp (night)11.7 °C

Precipitation34.5 mm/mo

Air humidity48.3 %

Moisture balance-98.6 mm/mo

Vapour deficit1,186 Pa

Wind speed2.90 m/s

Cloud cover16.3 %

CHELSA 1981–2010, ~9 km grid, at location & month of 10 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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