Calocephalus brownii

(Cass.) F.Muell. · species

image placeholder — illustration coming later

Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Calocephalus

At a glance

Occurrence records15

Data sources9

Biological traits28

DNA specimens0

eDNA detections1

Sources9 archives

Databases and archives Calocephalus brownii's data was compiled from.

WikipediaWikimedia Foundation4 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility15 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI1 eDNA detections↗

LOTUSNatural Products (Wikidata)compounds↗

NPASSNat. Product Activity & Species Sourcecompounds↗

Open Tree of LifeOpenTreephylogeny backbone↗

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

PloiDBPloidy Databasegenome & karyotype

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 sources28 traits

Chemical compositionLOTUS · NPASS16 compounds

Occurrence & distributionGBIF15 records

Environmental DNA1 datasets · 0 countries1 detections

Genome at a glanceCCDB2n = 18

01Narrative

Leucophyta is a plant genus which is endemic to Australia. The genus was first formally described by botanist Robert Brown in 1818. The sole species in the genus is Leucophyta brownii, also known as cushion bush. In 1891 German botanist Otto Kuntze assigned a number of species to this genus in his publication Revisio Generum Plantarum but none of his name combinations have currency, these species being presently divided between the genera Balladonia, Blennospora, Calocephalus and Gnephosis. Leucophyta brownii is a small, rounded shrub with tangled tomentose branchlets that give it a silvery appearance. Although it can grow up to 1 metre high, it is more usually 0.2 to 0.7 metres high. It produces flowers during summer (December to February in Australia). These are white - yellow globular heads and about 1 cm in diameter. The species is common in cultivation in Australia, with a selected dwarf form from Tasmania, known by the cultivar name 'Silver Nugget', also grown.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesAusTraitsTRYGIFT

Size & morphology10

Fruit length1.5 mm

Fruit width0.95 mm

Leaf length14 mm

Leaf size132 mm²

Leaf width1.2 mm

Plant height1 m

Plant height max1 m

Seed length4 mm

Seed mass0.166 mg

⚠ sources differ — TRY: 0.166 mg · AusTraits: 0.118 mg

Seed width1.5 mm

Life cycle & reproduction5

Dispersal typewind

Flowering timeyynnnnnnnnny

Life spanperennial

Pollination syndromeinsect

Sex typehermaphrodite+monoecious

Diet & foraging1

Parasiteindependent

Habitat & environment9

Aquaticterrestrial

Climberself-supporting

Epiphyteterrestrial

Fruit fleshinessdry

Fruit typeachene

Growth formshrub

Leaf compoundnesssimple

Leaf shapelinear narrowly_elliptical ovate

Woodinesswoody

Physiology & chemistry2

Nitrogen fixingnon_nitrogen_fixer

Photosynthetic pathwayC3

Other traits1

Plant support typefree-standing

03Chemical composition16 compounds

Compounds documented for Calocephalus brownii across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").

Compound class profile5 classes

Guaiane sesquiterpenoids10

Simple indole alkaloids3

Bisabolane sesquiterpenoids1

Guaiane sesquiterpenoids $ Pseudoguaiane sesquiterpenoids1

Germacrane sesquiterpenoids1

Documented compounds16 total

Tissue Source Quantified only

Compound	Amount	Source
(1R,2S,4R,8R,10S,11R,13S)-11-hydroxy-2,11-dimethyl-7-methylidene-5,14-dioxatetracyclo[8.4.0.01,13.04,8]tetradecan-6-one	present	LOTUS
(3aR,5S,8R,8aR,9aR)-5,8-dihydroxy-5,8-dimethyl-1-methylidene-3a,4,7,8a,9,9a-hexahydroazuleno[6,5-b]furan-2-one	present	LOTUS
(3aR,5S,8R,8aR,9aR)-8-hydroxy-5,8-dimethyl-1-methylidene-4,5,7,8a,9,9a-hexahydro-3aH-azuleno[6,5-b]furan-2-one	present	LOTUS
(4R)-4-[(5R)-5-(3-hydroxyprop-1-en-2-yl)-2-methylcyclohexen-1-yl]pentanoic acid	present	LOTUS
1H-Indole-3-carboxaldehyde	present	NPASS
[(1R,2S,4R,8R,10S,11R,13S)-2,11-dimethyl-7-methylidene-6-oxo-5,14-dioxatetracyclo[9.2.1.01,10.04,8]tetradecan-13-yl] acetate	present	LOTUS
[(1R,3S,7S,9R,10R,12S,14R)-9,14-dimethyl-4-methylidene-5-oxo-6,13-dioxatetracyclo[8.4.0.03,7.012,14]tetradecan-10-yl] acetate	present	LOTUS
[(1S,3R,7S,9S,10R,12R,14S)-9,14-dimethyl-4-methylidene-5-oxo-6,13-dioxatetracyclo[8.4.0.03,7.012,14]tetradecan-10-yl] acetate	present	LOTUS
[(3aR,5S,5aS,6S,8R,8aR,9aR)-5a,6-dihydroxy-5,8-dimethyl-1-methylidene-2-oxo-3a,4,5,6,7,8a,9,9a-octahydroazuleno[6,7-b]furan-8-yl] acetate	present	LOTUS
[(3aR,8R,8aR,9aR)-5,8-dimethyl-1-methylidene-2-oxo-4,6,7,8a,9,9a-hexahydro-3aH-azuleno[6,7-b]furan-8-yl] acetate	present	LOTUS

05DNA & barcoding1 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 Calocephalus brownii has left across the world's sequence archives.

At a glance

eDNA detections1

06Genome at a glanceCCDB

The complete instruction manual Calocephalus brownii 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 = 18 n = 9

Ploidydiploid inferred

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

2n 181×CCDB · ipcn-api-dl

CCDB · ipcn-api-dl — Watanabe, K., P. S. Short, T. Denda, N. Konishi, M. Ito & K. Kosuge. 1999. Asteraceae: chromosome numbers and karyotypes in the Australian Gnaphalieae and Plucheeae. Austral. Syst. Bot. 12: 781–802.

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

diploid inferred1×PloiDB · family-scale

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

07Deep time~15.1 Ma lineage

How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.

At a glance

DNA clock origin15.1 Ma TimeTree

When this lineage existed

How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.

DNA clock origin

08Occurrence & distribution

Record type15 records

Wild obs. + sensor7

Museum / vouchered6

Cultivated / captive2

Origin

Introduced4

Range

Area of Occupancy AOO36 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 accuracy100% within 1 km

≤100 m 3≤1 km 4

7 georeferenced

Open the mapobservation + sensor7

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 accuracy50% within 1 km

≤100 m 1≤10 km 1

2 georeferenced · 4 without coordinates

Open the institutions mapphysical evidence6

Cultivated / Captivenot free-living

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

Coordinate accuracy

no georeferenced coordinates · 2 records without

Open the mapnot free-living2

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 institutions6 of 6 geolocated

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

Institution	Specimens
Auckland, NZ	1
Honolulu, US	1
US	1
Bronx, US	1
Riverside, US	1
Claremont, US	1

6 institutions · 6 of 6 vouchered records shown

Cultivated / Captivenot free-living

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

09Environmental DNA1 detections

Where the DNA of Calocephalus brownii 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 found1

Studies independent surveys1

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

Where its DNA was found

0 of 1 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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