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May is BC Invasive Species Action Month! learn more »

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Webinar Recording

Calling all gardeners - watch the Bringing Back the Natives Garden Tour webinar.recording learn more »

June 27 Webinar

e-Learning for Realtors and Landscape Architects learn more »

Courses across BC March - May 2018

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Watch the recording

Learn about the potential economic impacts of a new BC invasion learn more »

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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 learn more »

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 »

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 »

Sulphur Cinquefoil

Potentilla recta

Sulphur cinquefoil (Potentilla recta) is a perennial and considered regionally noxious under the BC Weed Control Act. It is commonly found on grasslands, shrubby areas, dry open forests, and disturbed sites such as roadsides, pastures, and rangelands. Sulphur cinquefoil is currently distributed in the following areas: Columbia-Shuswap, North Okanagan, Okanagan-Similkameen, and Thompson-Nicola Regional Districts, as well as the southeast coast of Vancouver Island and the Fraser Canyon between Boston Bar and Kanaka Bar.

A member of the Rose family, sulphur cinquefoil has pale yellow flowers, each with five heart-shaped petals. Its hairy leaves are divided into five to seven separate, toothed leaflets that become shorter-stalked closer to the shoot. Plants grow 0.3-0.8 metres in height at maturity.

Sulphur cinquefoil spreads mainly by seed; a single plant can produce 1,600 seeds, living up to 20 years as new shoots can emerge from the main root. While seeds only survive up to two years, they disperse effectively on or through the digestive system of birds, wildlife, and livestock. Seeds can also spread in mud caught in tire tread or undercarriages of vehicles and machinery, or by being picked up on hooves or in hair. Due to its unpleasant taste, infestations decrease available forage for grazing animals, as well as decrease local plant biodiversity.

TIPS Factsheets

Gallery: Sulphur Cinquefoil