Hazard near the water, plant
Giant hogweed
- Records in GBIF
- 436
- Fishing districts near where it occurs
- 1 079
- Most sightings
- July
About the species Giant hogweed
About the species
An invasive plant that grows along stream banks and on wet meadows. In sunlight its sap causes skin burns.
Where to find it by the water
Riverbanks, roadsides and damp meadows, where it forms dense stands up to four metres tall.
What this means for anglers
Avoid it by the bank; contact with the sap in the sun causes burns.
How to protect yourself
Do not touch it and do not walk through the growth. If the sap gets on your skin, wash it off with water and soap and protect the spot from the sun. See a doctor for a larger burn.
When it is observed
Records by month in the areas around the fishing districts (GBIF).
- 14Jan
- 0Feb
- 39Mar
- 1Apr
- 53May
- 88June
- 114July
- 68Aug
- 39Sep
- 12Oct
- 6Nov
- 1Dec
In November the species is observed less than in the main season. Most records are from July.
The records come from people's observations and also reflect when and where observers move around. They are not a measurement of numbers or a guarantee of an encounter.
Where it was recorded
Fishing districts around which a record of this species exists. Sorted by number of records.
- Čierňanka č. 1 125
- Biely potok (Martin) 125
- Bitarovský potok 125
- Bystrica č. 1a 125
- Bystrica č. 1b 125
- Bystrica č. 2 125
- Čadečanka 125
- VN Šurabka 125
- Derivačný kanál Váhu 125
- Divina 125
- Dlhopolka 125
- Domanižanka č. 2 125
- VN Žilina 125
- Hradnianka 125
- Hričovský kanál č.2a 125
- Hričovský kanál č.2b 125
- Kornianka 125
- Kolárovický potok 125
- Kuneradský potok 125
- Kysuca č. 1 125
- Kysuca č. 2a 125
- Kysuca č. 2b 125
- Kysuca č. 3 125
- Manínsky potok – CHRO 125
- Milošovský potok 125
- Oščadnica 125
- Olešnianka 125
- Petrovička 125
- Pivovarský potok 125
- Povinský potok 125
- Porubský potok (Žilina) 125
- Predmieranka 125
- Radôstka č. 1 125
- Raková 125
- Rovnianka č. 1 125
- Rudinský potok 125
1,079 fishing districts in total, 36 shown. The number next to a fishing district is the number of records around it. Show on map
More species from the group plants
Photo credits
- Giant hogweed: Photo: Lucas Kendall, CC BY-SA 4.0, Wikimedia Commons
- Common reed: Photo: W.carter, CC0, Wikimedia Commons
- Broadleaf cattail: Photo: Peter O'Connor aka anemoneprojectors from Stevenage, United Kingdom, CC BY-SA 2.0, Wikimedia Commons
- Yellow flag iris: Photo: Myrabella, CC BY-SA 3.0, Wikimedia Commons
- Common duckweed: Photo: author not stated, CC BY-SA 3.0, Wikimedia Commons
- Black alder: Photo: AnRo0002, CC0, Wikimedia Commons
- Japanese knotweed: Photo: W.carter, CC0, Wikimedia Commons
The advice is general and does not replace the instructions of a doctor, rescuers, the site manager or the fishing regulations. Do not disturb protected species or dismantle their shelters.