Actites, commonly known as the dune thistle, beach thistle or coastal sow thistle, is a genus of flowering plants in the family Asteraceae. It is endemic to Australia and contains only one species, Actites megalocarpa . It is a large, clumping herb with yellow flowers.
No narrative description available for this taxon yet.
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 Sonchus megalocarpus has left across the world's sequence archives.
At a glance
eDNA detections7
Countries1
08Occurrence & distribution
Record type389 records
Wild obs. + sensor387
Museum / vouchered2
Range
Area of Occupancy AOO848 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 accuracy94% within 1 km
≤100 m 240≤1 km 29≤10 km 12>10 km 4
285 georeferenced · 102 without coordinates
Open the mapobservation + sensor387
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 · 2 records without
Open the institutions mapphysical evidence2
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
Stockholm, SE
1
Kew, GB
1
2 institutions · 2 of 2 vouchered records shown
09Environmental DNA7 detections
Where the DNA of Sonchus megalocarpus 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 found7
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 7 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 median21.9 °C 21.9–21.9
Seasonal swing summer↔winter18.4 °C
Max temp (day)28.5 °C
Min temp (night)15.0 °C
Precipitation15.6 mm/mo
Air humidity43.4 %
Moisture balance-143 mm/mo
Vapour deficit1,624 Pa
Wind speed4.00 m/s
Cloud cover18.1 %
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.
