Parrot’s feather Myriophyllum aquaticum
- Appearance: Perennial freshwater plant, finely pinnately dissected whorls of leaves, with shoots that can stick out of the water (13 cm high). Blue-green feather like leaves in whorls of 4-6. Emergent growth dies back in winter.
- Growth: Vigorous growth forming dense mats, small fragments can regrow. Prefers nutrient-rich shallow, still or slow-flowing water.
- Impact: Negative impact on aquatic ecosystems, shades out other plants and can obstruct the movement of animals. Decaying vegetation can reduce water quality leading to the death of fish and other aquatic animals.
- Pathway: Deliberate release or improper disposal of this pond plant into the wild.
- What to do if you see Parrot’s feather for sale or other offences being committed: Make a report by following the guidance here.
- What to do if you see this plant in the wild: Record it with a photograph (where possible).