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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 »

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 »

Spurges (Leafy, Myrtle, Cypress)

Species
Euphorbia esula, E. myrsinities, E. cyparissias

Leafy spurge (Euphorbia esula) is a perennial, considered noxious under the BC Weed Control Act, and commonly found at low- to mid-elevations on dry roadsides, fields, grasslands, open forests, and disturbed habitats. Isolated pockets occur in the Cariboo, Boundary, East Kootenay, Nechako, and North Okanagan areas. It is a major concern in the Kootenay, Okanagan, Thompson, Cariboo, and Omineca regions.

Leafy spurge has clusters of petite, yellowish-green flowers supported by distinctive heart-shaped leaves just below flowers. It is a bushy plant with narrow leaves that spiral around the stem, and grows up to a metre tall with extensive horizontal and vertical roots.

Leafy spurge spreads with its extensive root system, which can exceed 4.5 metres horizontally and 9 metres vertically. Up to 300 new buds can form on the roots of a single plant. Seed reproduction also contributes to new growth. Leafy spurge is a uniquely competitive invasive plant as it produces a compound that actively inhibits the growth of other plants nearby. The entire plant contains white, milky latex that can irritate skin of livestock and humans, resulting in blisters and swelling. Leafy spurge invades rangeland, reducing its productivity for livestock and wildlife.

A few native and ornamental alternatives to plant instead of leafy spurge include: Broad-leaf Stonecrop; Yellow Ice Plant; Red Hot Poker; Common Rockrose; and Yellow Gem Shrubby Cinquefoil. Read more about these alternatives in the Grow Me Instead booklet for BC.

Refer to Weeds BC for information on prevention and control methods.

TIPS Factsheets

Gallery: Leafy Spurge