Monster plants and native species loss

… in woodlands, shading out native plants. Rhododendron hosts … which infects Britain’s native trees.
Japanese knotweed (Reyneutria … hogweed (Heracleum mantegazianum), native to central Asia, can … plants in British Columbia, Canada. 
Mesquite (Prosopis juliflora), …… in woodlands, shading out native plants. Rhododendron hosts … which infects Britain’s native trees.
Japanese knotweed (Reyneutria … hogweed (Heracleum mantegazianum), native to central Asia, can … plants in British Columbia, Canada. 
Mesquite (Prosopis juliflora), …