Cochemiea grahamii

(Engelm.) Doweld · species

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Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Cactaceae/Cochemiea

At a glance

Occurrence records9 684

Data sources9

Biological traits10

DNA specimens0

eDNA detections2

Sources9 archives

Databases and archives Cochemiea grahamii's data was compiled from.

WikipediaWikimedia Foundation5 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility9 684 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗

GRIN TaxonomyUSDA-ARSdistribution & uses↗

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

PloiDBPloidy Databasegenome & karyotype

Tree of SexTree of Sex Consortiumgenome & karyotype↗

GLoBIGlobal Biotic Interactionsbiotic interactions↗

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 & distributionGBIF9 684 records

Environmental DNA1 datasets · 1 countries2 detections

Genome at a glanceCCDB · TreeOfSex2n = 22

01Narrative

Mammillaria grahamii is a species of cactus also known by the name Graham's nipple cactus. In the United States, this plant can be found in Arizona, California, New Mexico, and Texas.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesTRYGIFT

Size & morphology3

Seed mass0.29 mg

Seed mass max0.29 mg

Seed mass min0.29 mg

Life cycle & reproduction1

Life spanperennial

Diet & foraging1

Parasiteindependent

Habitat & environment5

Aquaticterrestrial

Climberself-supporting

Epiphyteterrestrial

Growth formshrub

Woodinessnon-woody

05DNA & barcoding2 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 Cochemiea grahamii has left across the world's sequence archives.

At a glance

eDNA detections2

Countries1

06Genome at a glanceCCDB · TreeOfSex

The complete instruction manual Cochemiea grahamii 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 = 22 n = 11

Ploidydiploid inferred

Chromosome records22–222n range22median22mode6records

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

2n 226×CCDB · ipcn-api-dl · CCDB · book-ipcn75-78 · CCDB · eflora +2

CCDB · ipcn-api-dl — Weedin, J. F. & A. M. Powell. 1978. Chromosome numbers in Chihuahuan desert Cactaceae. Trans-Pecos Texas. Amer. J. Bot. 65: 531–537.

CCDB · book-ipcn75-78 — Weedin & Powell 1978a

CCDB · eflora

CCDB · book-fedorov — Remski 1954

TreeOfSex · plant — Goldblatt1979 ↗

n 112×CCDB · ipcn-api-dl · CCDB · book-ipcn75-78

CCDB · ipcn-api-dl — Pinkava, D. J., L. A. MCGILL & T. REEVES. 1977. Chromosome numbers in some cacti of western North America---III. Bull. Torrey Bot. Club 104: 105–110.

CCDB · book-ipcn75-78 — Pinkava et al. 1977

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 type9 684 records

Wild obs. + sensor9 678

Museum / vouchered6

Range

Area of Occupancy AOO8 244 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 accuracy90% within 1 km

≤100 m 6 486≤1 km 729≤10 km 275>10 km 499

7 989 georeferenced · 1 689 without coordinates

Open the mapobservation + sensor9 678

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 · 6 records without

Open the institutions mapphysical evidence6

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 institutions2 of 2 geolocated

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

Institution	Specimens
Albuquerque, US	5
Phoenix, US	1

2 institutions · 6 of 6 vouchered records shown

09Environmental DNA2 detections

Where the DNA of Cochemiea grahamii 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 median15.7 °C 15.7–15.7

Seasonal swing summer↔winter9.60 °C

Max temp (day)22.0 °C

Min temp (night)9.00 °C

Precipitation34.7 mm/mo

Air humidity50.9 %

Moisture balance-93.3 mm/mo

Vapour deficit884 Pa

Wind speed4.10 m/s

Cloud cover25.5 %

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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Cochemiea grahamii

At a glance

Sources9 archives

Size & morphology3

Life cycle & reproduction1

Diet & foraging1

Habitat & environment5

At a glance

Chromosomes & ploidyhow the DNA is packaged

Record type9 684 records

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions2 of 2 geolocated

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type9 684 records