Hieracium radyrense

(Pugsley) P.D.Sell & C.West · species

image placeholder — illustration coming later

Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Hieracium

At a glance

Occurrence records31

Data sources7

Biological traits8

DNA specimens2

eDNA detections1

Sources7 archives

Databases and archives Hieracium radyrense's data was compiled from.

WikipediaWikimedia Foundation2 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility31 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI1 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics2 specimens↗

Open Tree of LifeOpenTreephylogeny backbone↗

GoaTGenomes on a Tree · Sangergenome ~7.21 Gbp↗

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 sources8 traits

Occurrence & distributionGBIF31 records

Environmental DNA1 datasets · 1 countries1 detections

DNA & barcodingBOLD2 specimens

Genome at a glanceGoaT7.2 Gbp

01Narrative

Hieracium radyrense, the Radyr hawkweed, is a very rare endemic species restricted to Radyr in south Wales, UK. First identified in 1907 it was described as a variety in 1948 and a species in 1955. and belongs to Hieracium section Vulgata. It has rarely been seen and surveys between 1998 and 2004 indicate that only one population of about 25 plants survives. A polycarpic perennial, Radyr hawkweed flowers from late May to early June or July. Specimens found at Danybryn in Radyr grew on a grassy bank and lawn under the partial shade of trees and shrubs.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPTRYGIFT

Size & morphology3

Seed mass0.599 mg

⚠ sources differ — TRY: 0.599 mg · GIFT: 0.555 mg

Seed mass max0.56 mg

Seed mass min0.55 mg

Life cycle & reproduction2

Life formperennial

Life spanperennial

Habitat & environment3

Climatetemperate

Growth formherb

Woodinessnon-woody

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 Hieracium radyrense has left across the world's sequence archives.

At a glance

DNA specimens2

Marker genes2

eDNA detections1

Countries1

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.

★rbcL★ITS2

plant barcodefungal barcode

06Genome at a glanceGoaT

The complete instruction manual Hieracium radyrense 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 size7 207 860 000 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 Hieracium radyrense7.21 Gb

WHEAT17 Gb

FERN Tmesipteris160.45 Gb

08Occurrence & distribution

Record type31 records

Wild obs. + sensor26

Museum / vouchered5

Range

Area of Occupancy AOO20 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 accuracy12% within 1 km

≤100 m 3≤10 km 23

26 georeferenced

Open the mapobservation + sensor26

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 2

2 georeferenced · 3 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 institutions2 of 4 geolocated

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

Institution	Specimens
South Kensington, GB	2
Kew, GB	1
LDlocation not on record	1
Royal Botanic Garden Edinburghlocation not on record	1

4 institutions · 5 of 5 vouchered records shown

09Environmental DNA1 detections

Where the DNA of Hieracium radyrense 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

Countries1

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

Where its DNA was found

0 of 1 detections have coordinates

Open the map1 country0

Private collection T. Rich

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 median14.7 °C 14.7–14.7

Seasonal swing summer↔winter11.3 °C

Max temp (day)17.4 °C

Min temp (night)11.2 °C

Precipitation68.3 mm/mo

Air humidity61.8 %

Moisture balance-49.7 mm/mo

Vapour deficit635 Pa

Wind speed4.10 m/s

Cloud cover50.6 %

CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · 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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