pernicious

Stand of Japanese knotweed Reynoutria japonica Fallopia japonica showing thicket of stems and foliage

Giant hogweed Heracleum sphondylium showing white corymbs of flowers, different shaped leaves, and cross section of the hollow stem

Japanese Knotweed Fallopia japonica plant including roots underground

Pollinators bee ant hoverfly on Japanese knotweed Fallopia japonica

Japanese knotweed Fallopia japonica root crown with cross section of root and detail of pink growing tips

Sketchbook illustration of Japanese Knotweed Fallopia japonica with a few leaves shown in full colour detail along with a detailed colour study of the roots and lower stem, individual studies of lone flowers ara accompanied with tonal pecnil studies of the racemes of white fkowers and leaves showing venation pattern