Whitetop weed, Parthenium hysterophorus


Short description of Parthenium hysterophorus, Whitetop weed

Parthenium hysterophorus is an annual herb that can become invasive in disturbed habitats.

Description of Parthenium hysterophorus, Whitetop weed status in GB

Parthenium hysterophorus is a subtropical annual herb that has not been recorded in British Isles and is unlikely to occur (as an established species) unless the climate becomes significantly warmer and more humid in the future.

Habitat summary: Parthenium hysterophorus, Whitetop weed

Disturbed habitats such as road and rail verges, abandoned farmland and waste ground, river and stream banks, urbans areas and gardens and cultivated and pasture lands.

Overview table

Environment: Terrestrial
Species status: Non-Native
Functional type: Land plant
Date of first record: Unknown

Distribution map

GB Distribution from BSBI

Author's name:

Kevin Walker

Last updated:

October 2nd 2019

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Thin strip of image show tree trunk and bark