Lagarosiphon major

(Ridl.) Moss · species

image placeholder — illustration coming later

Plantae/Tracheophyta/Liliopsida/Alismatales/Hydrocharitaceae/Lagarosiphon

At a glance

Occurrence records4 757

Data sources11

Biological traits46

DNA specimens20

eDNA detections13

Sources11 archives

Databases and archives Lagarosiphon major's data was compiled from.

WikipediaWikimedia Foundation4 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility4 757 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI13 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics20 specimens↗

GRIN TaxonomyUSDA-ARSdistribution & uses↗

Open Tree of LifeOpenTreephylogeny backbone↗

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

GoaTGenomes on a Tree · Sangergenome & karyotype↗

PloiDBPloidy Databasegenome & karyotype

WikidataWikimedia Foundationstructured facts↗

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 & measurements5 literature sources46 traits

Occurrence & distributionGBIF4 757 records

Environmental DNA1 datasets · 3 countries13 detections

DNA & barcodingBOLD20 specimens

Genome at a glanceCCDB · GoaT3.2 Gbp

01Narrative

Lagarosiphon major is a monocotic aquatic plant native to Southern Africa. Common names include African elodea, curly waterweed, oxygen weed and South African oxygen weed. It is used as freshwater aquarium plant. It is an invasive plant in some countries.Global Invasive Species Database - Lagarosiphon major entry In New Zealand it is listed on the National Pest Plant Accord and is classed as a noxious weed in the United States. Lagarosiphon Major was added to the European Union's List of Invasive Alien Species of Union concern on 3 August 2016. This means - amongst other things- that it is illegal to sell this plant in the whole of the European Union or to dump it in the environment.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPLEDATRYAusTraitsGIFT

Size & morphology16

Leaf length12.5 mm

Leaf length max13 mm

Leaf size32 mm²

Leaf width2.5 mm

Plant height0.5 m

⚠ sources differ — GIFT: 0.5 m · AusTraits: 5 m · TRY: 0.6 m

Plant height max5 m

Plant height min0.3 m

Seed length2 mm

⚠ sources differ — AusTraits: 2 mm · GIFT: 0 mm

Seed length max0 mm

Seed length min0 mm

Seed mass0 mg

Seed mass max0 mg

Seed mass min0 mg

Seed width0 mm

Seed width max0 mm

Seed width min0 mm

Life cycle & reproduction13

Deciduousnessevergreen

Dehiscenceindehiscent

Flowering endAug

Flowering startJul

Flowering timeyynnnnnnnyyy

Life formhydroperennial

Life spanperennial

Pollination modeabiotic

Pollination syndromewater

Raunkiær life formcryptophyte

Reproduction asexualpresent

Seed number0

Sex typedioecious

Diet & foraging1

Parasiteindependent

Habitat & environment10

Aquaticaquatic

Climatesubtropical

Climberself-supporting

Elevation max2 600 m

Elevation min365 m

Epiphyteterrestrial

Fruit typecapsule

⚠ sources differ — AusTraits: capsule · GIFT: nut

Growth formherb

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

Mycorrhiza type0.009793384

Woodinessnon-woody

Physiology & chemistry5

Leaf C:N ratio13.58 g/g

Leaf c406 mg/g

Leaf dry-matter content (LDMC)244 mg/g

Leaf n29.93 mg/g

Photosynthetic pathwayC3

Other traits1

Diaspore typevegetative

05DNA & barcoding20 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 Lagarosiphon major has left across the world's sequence archives.

At a glance

DNA specimens20

Marker genes2

eDNA detections13

Countries4

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.

★COI-5P★rbcL

animal barcodeplant barcode

06Genome at a glanceCCDB · GoaT

The complete instruction manual Lagarosiphon major 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.

Genome sizehow big the whole instruction manual is

Genome size3 227 400 000 bp

Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).

BACTERIUM Carsonella ruddii0.00016 Gb

FUNGUS0.04 Gb

INSECT0.25 Gb

HUMAN3.2 Gb

THIS GENOME Lagarosiphon major3.23 Gb

WHEAT17 Gb

FERN Tmesipteris160.45 Gb

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

Ploidypolyploid inferred

Chromosome records22–242n range22median22mode8records

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

2n 227×GoaT · Kew Plant DNA C-values Database · CCDB · ita-fl · CCDB · nw-europe-fl +4

GoaT · Kew Plant DNA C-values Database — ↗

CCDB · ita-fl — FERRO G. - 1965. Il numero cromosomico somatico di Lagarosiphon major (Ridley) Moss.. Atti Ist. Bot. Univ. Lab. Crittog. Univ. Pavia, ser.6 , 1: 111-115.

CCDB · nw-europe-fl — http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=4172

CCDB · ipcn-api-dl — Uchiyama, H. 1989. Karyomorphological studies on some taxa of the Helobiae. J. Sci. Hiroshima Univ., Ser. B, Div. 2, Bot. 22: 271–352.

CCDB · book-ipcn67-71 — FERRO, G. 1966. II numero cromosomico somatico di Lagarosiphon major (Ridley) Moss. Att. Ist. Bot. Univ. Lab. Crittogam., Pavia, ser. 6: 1: 111-115.

CCDB · book-fedorov — Ferro 1965

CCDB · kew — Bennett MD, Leitch IJ, Hanson L. 1998. DNA amounts in two samples of angiosperm weeds. Annals of Botany 82 (Supplement A): 121-134.

2n 241×CCDB · ipcn-api-dl

CCDB · ipcn-api-dl — Kiehn, M., E. Vitek & C. Dobea. 2000. In C. Dobea & E. Vitek, Documented Chromosome Number Checklist of Austrian Vascular Plants. Verlag des Naturhistorischen Museums Wien, Vienna.

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 type4 757 records

Wild obs. + sensor4 403

Museum / vouchered327

Cultivated / captive26

Other1

Origin

Introduced133

Range

Area of Occupancy AOO5 024 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 accuracy44% within 1 km

≤100 m 752≤1 km 118≤10 km 1 022>10 km 73

1 965 georeferenced · 2 438 without coordinates

Open the mapobservation + sensor4 403

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 accuracy64% within 1 km

≤100 m 4≤1 km 12≤10 km 6>10 km 3

25 georeferenced · 302 without coordinates

Open the institutions mapphysical evidence327

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 · 26 records without

Open the mapnot free-living26

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 institutions16 of 29 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	65
Christchurch, NZ	55
Auckland, NZ	26
BIO-UNIPIlocation not on record	18
Durban, ZA	10
KURAlocation not on record	8
MeiseBGlocation not on record	5
Rotorua, NZ	5
LDlocation not on record	3
Tilburg, NL	3
Saint Louis, US	3
Royal Botanic Garden Edinburghlocation not on record	3
Zürich, CH	3
Mount Annan, AU	3
South Kensington, GB	3
Kew, GB	2
Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)location not on record	2
BFLlocation not on record	2
H-Diewaldlocation not on record	2
San Sebastián, ES	1
Museo Entomologico de Leonlocation not on record	1
Wellington, NZ	1
Hobart, AU	1
Frankfurt am Main	1
Zürich, CH	1
BRNUlocation not on record	1
Wlocation not on record	1
Canadian Department of Agriculturelocation not on record	1
GJOlocation not on record	1

29 institutions · 231 of 327 vouchered records shown · 85 without an institution code

Cultivated / Captivenot free-living

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

09Environmental DNA13 detections

Where the DNA of Lagarosiphon major 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 found13

Studies independent surveys1

Countries3

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

Where its DNA was found

0 of 13 detections have coordinates

Open the map3 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.

Modelled climatemodelled

−15°Ctemperature across detection sites+40°C

Temperature median13.0 °C 10.2–15.7

Seasonal swing summer↔winter15.6 °C

Max temp (day)19.2 °C 18.7–19.7

Min temp (night)7.70 °C 4.10–11.2

Precipitation39.5 mm/mo 7.30–71.7

Air humidity55.1 % 50.8–60.4

Moisture balance-49.9 mm/mo -50.5–-49.3

Vapour deficit661 Pa 614–708

Wind speed3.40 m/s 2.70–4.50

Cloud cover21.0 % 5.40–36.5

CHELSA 1981–2010, ~9 km grid, at location & month of 12 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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Lagarosiphon major

At a glance

Sources11 archives

Size & morphology16

Life cycle & reproduction13

Diet & foraging1

Habitat & environment10

Physiology & chemistry5

Other traits1

At a glance

Genome sizehow big the whole instruction manual is

Chromosomes & ploidyhow the DNA is packaged

Record type4 757 records

Origin

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Cultivated / Captivenot free-living

Wildobservation + sensor

Holding institutions16 of 29 geolocated

Cultivated / Captivenot free-living

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type4 757 records