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Parrot's Feather

A popular aquatic garden plant that spreads with water currents, animals, boats/trailers and fishing gear. Dense stands can stagnate water, and increase breeding grounds for mosquitoes

Zebra/Quagga Mussels

These tiny freshwater mussels clog drains, damage infrastructure, and are very costly to control/eradicate learn more »

Giant Hogweed

A towering toxic invasive plant with WorkSafe BC regulations learn more »

Invasive Species Research Conference

Turning Science into Action! Co-hosted by Thompson Rivers University and the Invasive Species Council of BC. learn more »

European Fire Ant

A tiny ant with a toxic sting learn more »

Purple Loosestrife

An aggressive wetland invader that threatens plant and animal diversity learn more »

Orange Hawkweed

Also yellow, these invasive plants replace native vegetation along roadsides, and threaten areas not yet reforested learn more »

Japanese Knotweed

Grows aggressively through concrete, impacting roads and house foundations learn more »

Spotted Knapweed

A single plant spreads rapidly with up to 140,000 seeds per square metre learn more »

Scotch Broom

An evergreen shrub that invades rangelands, replaces forage plants, causes allergies in people, and is a serious competitor to conifer seedlings learn more »

Parrot’s Feather

Species
Myriophyllum aquaticum

Parrot’s feather (Myriophyllum aquaticum) is an aquatic perennial that is currently impacted several areas within BC. This species is known to out-compete and replace native aquatic vegetation with its dense stands. These stands also create pools of stagnant water, leading on an increase in mosquito breeding grounds. Parrot’s feather is currently present in freshwater lakes, ponds, or streams in the Lower Mainland and Fraser Valley regions.

Named for its feather-like bright green foliage, parrot’s feather has both submersed and emergent plant parts. Intertwined mats typically have standing stems over 1.5m in length which are covered in submersed stiff leaves roughly 2-5cm long; limp emergent leaves range from 1.5-3.5cm in length.

Unfortunately, parrot’s feather is a popular aquatic garden species and intentional planting has spread this species into natural water bodies. Generally, all parrot’s feather plants are female and because of this they do not produce seeds; this plant spreads via underground stems, and plant fragments can be dispersed with water, animals, boats, and fishing gear.

Once established, parrot’s feather is a difficult invasive to manage. Due to its submersed and emergent vegetation, herbicides are difficult to effectively implement. Prevention is key with the species; be PlantWise and please avoid using parrot’s feather in aquatic gardens or aquariums. Properly Clean, Drain, Dry your boat and fishing gear before leaving an infected site. 

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Gallery: Parrot’s Feather