0 a plant with trumpet-shaped flowers (= wider at one end) that twists around other plants as it grows, sometimes grown for its flowers and sometimes growing wild as a weed (= a plant that is not wanted):
Avoid soils contaminated with the really tough weeds such as horse tail, ground elder, coltsfoot and convolvulus.
The canal towpath can offer a colourful assortment of vetch, convolvulus and purple lupins.
Luxuriant vegetation covers the island, masses of yellow flowers, lilac-coloured papilionaceoe, and mauve convolvuluses.
