slender leaves

Himalayan Knotweed Persicaria polystachum sketchbook study sheet, showing details of plant

Water dock Rumex hydrolapathum pencil drawing

Crack willow Salix fragilis tree shape without leaves and individual sprig of leaves and flowering catkin

Common Sorrel Rumex acetosa with pointed leaf base and flowers and fruit

Carnation sedge carex panicea whole plant with details on murcinate leaf apex, glume, fruit, ligule, cross section, three stigma fruit and stem cross section