Hieracium traillii

Greene · species

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Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Hieracium

At a glance

Occurrence records22

Data sources7

Biological traits9

DNA specimens2

eDNA detections2

Sources7 archives

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

WikipediaWikimedia Foundation2 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility22 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics2 specimens↗

Open Tree of LifeOpenTreephylogeny backbone↗

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 sources9 traits

Occurrence & distributionGBIF22 records

Environmental DNA1 datasets · 0 countries2 detections

DNA & barcodingBOLD2 specimens

Genome at a glanceGoaTgenome

01Narrative

Hieracium traillii is a species of hawkweed known by the common name Maryland hawkweed. Hieracium traillii grows in the eastern United States, primarily in the central Appalachian Mountains of Pennsylvania, Maryland, Virginia, and West Virginia, with some populations farther west in Ohio and Kentucky.Biota of North America Program 2014 county distribution map, Hieracium greenii Hieracium traillii is a small hawkweed forming a basal rosette of densely hairy gray-green leaves, each up to 8 centimeters (3.2 inches) long and some with toothed edges. It bolts a thin, hairy stem which reaches 60 centimeters (2 feet) tall. The stem bears an inflorescence of several flower heads containing yellow ray flowers but no disc flowers. The fruit is a ribbed achene about half a centimeter (0.2 inches) long with a light brown pappus.Flora of North America, Hieracium traillii Greene, 1900.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPGIFTTRY

Life cycle & reproduction2

Life formperennial

Life spanperennial

Diet & foraging1

Parasiteindependent

Habitat & environment6

Aquaticterrestrial

Climatetemperate

Climberself-supporting

Epiphyteterrestrial

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 traillii has left across the world's sequence archives.

At a glance

DNA specimens2

Marker genes1

eDNA detections2

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.

★ITS

fungal barcode

06Genome at a glanceGoaT

The complete instruction manual Hieracium traillii 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.

Ploidypolyploid inferred

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

polyploid inferred1×PloiDB · genus-scale

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

08Occurrence & distribution

Record type22 records

Wild obs. + sensor2

Museum / vouchered20

Origin

Native2

Range

Area of Occupancy AOO68 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 accuracy50% within 1 km

≤1 km 1>10 km 1

2 georeferenced

Open the mapobservation + sensor2

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 2≤1 km 7≤10 km 9

18 georeferenced · 2 without coordinates

Open the institutions mapphysical evidence20

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 institutions4 of 8 geolocated

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

Institution	Specimens
Longwood Universitylocation not on record	5
Chongqing Museumlocation not on record	4
Chapel Hill, US	3
Williamsburg, US	3
Maryland Department of Natural Resourceslocation not on record	2
University of Lynchburglocation not on record	1
Bangkok, TH	1
Elikins, US	1

8 institutions · 20 of 20 vouchered records shown

09Environmental DNA2 detections

Where the DNA of Hieracium traillii 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

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

Where its DNA was found

0 of 2 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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