Koenigia davisiae

(W.H.Brewer ex A.Gray) T.M.Schust. & Reveal · species

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Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Polygonaceae/Koenigia

At a glance

Occurrence records1 210

Data sources7

Biological traits89

DNA specimens0

eDNA detections0

Sources7 archives

Databases and archives Koenigia davisiae's data was compiled from.

WikipediaWikimedia Foundation3 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility1 210 records↗

Open Tree of LifeOpenTreephylogeny backbone↗

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

PloiDBPloidy Databasegenome & karyotype

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page4 sections

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

NarrativeWikipediaarticle

Traits & measurements4 literature sources89 traits

Occurrence & distributionGBIF1 210 records

Genome at a glanceCCDB2n = 20

01Narrative

Koenigia davisiae is a flowering plant in the knotweed family that is known by the common names Davis' knotweed or Newberry knotweed.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPGIFTUSDATRY

Size & morphology2

Plant height0.4 m

Seed mass3.62 mg

Life cycle & reproduction23

Bloom periodEarly Summer

Coppice potentialNo

Flower colourpurple

Flower conspicuousYes

Fruit seed period beginSummer

Fruit seed period endSummer

Growth rate USDAModerate

Life formperennial

Life spanperennial

Lifespan categoryModerate

Propagated by bare rootNo

Propagated by bulbNo

Propagated by containerYes

Propagated by cormNo

Propagated by cuttingsYes

Propagated by seedYes

Propagated by sodNo

Propagated by sprigsNo

Propagated by tubersNo

Resprout abilityNo

Seed spread rateSlow

Seedling vigorMedium

Vegetative spread rateNone

Diet & foraging1

Parasiteindependent

Habitat & environment24

Active growth periodSpring and Summer

Adapted to coarse textured soilsYes

Adapted to fine textured soilsNo

Adapted to medium textured soilsYes

Aquaticterrestrial

BloatNone

Climatesubalpine or subarctic

Climberself-supporting

Epiphyteterrestrial

Foliage colorGreen

Foliage porosity summerPorous

Foliage porosity winterPorous

Foliage textureMedium

Fruit colourbrown

Growth formherb

⚠ sources differ — GIFT: herb · TRY: Subshrub, Forb/herb

Growth form USDASingle Crown

Hedge toleranceNone

Known allelopathNo

Leaf retentionNo

Low growing grassNo

Root depth min14 in

Shape and orientationErect

Small grainNo

Woodinessnon-woody

Physiology & chemistry18

Anaerobic toleranceNone

C:N ratioHigh

Caco3 toleranceLow

Cold stratification requiredNo

Drought toleranceMedium

Fertility requirementLow

Fire resistantNo

Frost free days min120 days

Moisture useLow

Nitrogen fixation levelNone

Precipitation max30 in

Precipitation min14 in

Protein potentialLow

Salinity toleranceNone

Shade toleranceMedium

Soil pH max7.8 pH

Soil pH min6.4 pH

Temperature min-23 °F

Uses & economy15

Berry nut seed productNo

Christmas tree productNo

Commercial availabilityNo Known Source

Fodder productNo

Lumber productNo

Naval store productNo

Nursery stock productNo

Palatable browse animalLow

Palatable graze animalLow

Palatable humanNo

Post productNo

Pulpwood productNo

Seeds per pound125 000 per lb

ToxicityNone

Veneer productNo

Other traits6

Fall conspicuousNo

Fruit seed abundanceLow

Fruit seed conspicuousYes

Fruit seed persistenceNo

Planting density max2 700 per acre

Planting density min1 700 per acre

05DNA & barcodingmolecular

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 Koenigia davisiae has left across the world's sequence archives.

At a glance

06Genome at a glanceCCDB

The complete instruction manual Koenigia davisiae 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

Ploidypolyploid inferred

Chromosome records20–202n range20median20mode2records

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

2n 202×CCDB · eflora

CCDB · eflora

n 101×CCDB · ipcn-api-dl

CCDB · ipcn-api-dl — Chambers, K. L., D. Green, S. Potampa & L. McMahan. 1998. IOPB chromosome data 13. Newslett. Int. Organ. Pl. Biosyst. (Oslo) 29: 18–22.

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 type1 210 records

Wild obs. + sensor1 205

Museum / vouchered5

Range

Area of Occupancy AOO1 400 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 accuracy92% within 1 km

≤100 m 701≤1 km 106≤10 km 48>10 km 22

877 georeferenced · 328 without coordinates

Open the mapobservation + sensor1 205

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 accuracy0% within 1 km

≤10 km 1

1 georeferenced · 4 without coordinates

Open the institutions mapphysical evidence5

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
Berlin, DE	2
Saint Louis, US	2
Dekalb, US	1

3 institutions · 5 of 5 vouchered records shown

←→tabs

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Koenigia davisiae

At a glance

Sources7 archives

Size & morphology2

Life cycle & reproduction23

Diet & foraging1

Habitat & environment24

Physiology & chemistry18

Uses & economy15

Other traits6

At a glance

Chromosomes & ploidyhow the DNA is packaged

Record type1 210 records

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions3 of 3 geolocated

Record type1 210 records