Crassula columnaris

Thunb. · species

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Plantae/Tracheophyta/Magnoliopsida/Saxifragales/Crassulaceae/Crassula

At a glance

Occurrence records634

Data sources8

Biological traits15

DNA specimens2

eDNA detections2

Sources8 archives

Databases and archives Crassula columnaris's data was compiled from.

GBIFGlobal Biodiversity Information Facility634 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics2 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

On this page5 sections

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

Traits & measurements3 literature sources15 traits

Occurrence & distributionGBIF634 records

Environmental DNA1 datasets · 0 countries2 detections

DNA & barcodingBOLD · NCBI2 specimens

Genome at a glanceCCDB2n = 14

02Traits & measurements

SourcesWCVPGIFTTRY

Size & morphology2

Plant height max0.01 m

Seed mass0.027 mg

Life cycle & reproduction3

Life formbiennial or subshrub

Life spanannual

Raunkiær life formtherophyte

Diet & foraging1

Parasiteindependent

Habitat & environment8

Aquaticterrestrial

Climatesubtropical

Climberself-supporting

Elevation max1 700 m

Elevation min20 m

Epiphyteterrestrial

Growth formherb

Woodinessnon-woody

Other traits1

Plant support typefree-standing

05DNA & barcoding2 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 Crassula columnaris has left across the world's sequence archives.

At a glance

DNA specimens2

Marker genes2

GenBank sequences4

eDNA detections2

The DNA barcodea real sequence read deposited for this species

ITSMH503519.1 ↗688 bp

ACGT

ACCTGCGGAAGGATCATTGTCGCAGCCTTTGCAAGCACGACCCGTGGACAAGTTGTTAACTAGGGAGTCAAGGGGATCACTTGTGCTTCC …

Crassula columnaris subsp. columnaris voucher Bruyns 13161 (BOL) internal transcribed spacer 1, partial sequence; 5.8S ribosomal RNA gene and internal transcribed spacer 2, complete sequence; and large subunit 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.

★matK2★ITS2

plant barcodefungal barcode

06Genome at a glanceCCDB

The complete instruction manual Crassula columnaris 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 = 14 n = 7

Ploidydiploid inferred

Chromosome records14–282n range14median14mode7records

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

2n 145×CCDB · book-ipcn73-74 · CCDB · Oberlander2016

CCDB · book-ipcn73-74 — Greenland. Bot. Tidsskrift 69: 52-57. FRIEDRICH, H. CH. 1974. Vorarbeiten zu einer Monographie der GattunJ Crassula L. II Weitere neue Sippen aus dem Westlichen SQdafrika Mit~ Bot. MOnchen 11: 323-348. . Hohenl

CCDB · book-ipcn73-74 — FRIEDRICH, H.-CH. 1973. Contribution to the cytotaxonomy of the genus Crassula. Garcia de Orta, Ser.Bot. 1: 49-66.

CCDB · Oberlander2016 — Baldwin, 1936;Friedrich, 1973

2n 282×CCDB · book-ipcn73-74 · CCDB · Oberlander2016

CCDB · Oberlander2016 — Baldwin, 1936;Friedrich, 1973

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

diploid inferred1×PloiDB · genus-scale

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

08Occurrence & distribution

Record type634 records

Wild obs. + sensor631

Museum / vouchered3

Range

Area of Occupancy AOO1 740 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 accuracy57% within 1 km

≤100 m 260≤1 km 53≤10 km 31>10 km 207

551 georeferenced · 80 without coordinates

Open the mapobservation + sensor631

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 · 3 records without

Open the institutions mapphysical evidence3

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 institutions3 of 3 geolocated

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

Institution	Specimens
Wuzhou, CN	1
Zürich, CH	1
Cape Town, ZA	1

3 institutions · 3 of 3 vouchered records shown

09Environmental DNA2 detections

Where the DNA of Crassula columnaris 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

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

Where its DNA was found

0 of 2 detections have coordinates

Open the map0 countries0

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.

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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