![Parrot’s feather Myriophyllium aquaticum sketchbook study](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Parrot’s feather Myriophyllium aquaticum sketchbook study
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden
![Fanwort Cabomba caroliniana sketchbook study](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Fanwort Cabomba caroliniana sketchbook study
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden
![Canadian Waterweed Elodea canadensis Nuttalls waterweed Elodea nuttalli comparison](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Canadian Waterweed Elodea canadensis Nuttalls waterweed Elodea nuttalli comparison
Sketchbook study of these similar invasive aquatic plant species, with botanical details, completed for FOR Sweden
![Nuttall’s waterweed Elodea nuttallii sketchbook study](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Nuttall’s waterweed Elodea nuttallii sketchbook study
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden
![Canadian waterweed Elodea canadensis sketchbook study](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Canadian waterweed Elodea canadensis sketchbook study
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden
![Eared watermoss Salvinia auriculata sketchbook study](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Eared watermoss Salvinia auriculata sketchbook study
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden
![Floating pennywort Hydrocotyle ranunculoides vs Marsh Pennywort](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Floating pennywort Hydrocotyle ranunculoides vs Marsh Pennywort
Sketchbook study of the invasive vs the native aquatic plant, with botanical details, completed for FOR Sweden
![Fringed Water lily Nymphoides peltata](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Fringed Water lily Nymphoides peltata
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden
![Water Lettuce Pistia stratiotes sketchbook study](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Water Lettuce Pistia stratiotes sketchbook study
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden
![New Zealand pigmyweed Crassula helmsii](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
New Zealand pigmyweed Crassula helmsii
Sketchbook illustration showing plant, habit and details. Also known as Swamp stonecrop, this plant is an invasive aquatic species in many areas.
![Japanese knotweed Fallopia japonica in winter](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Japanese knotweed Fallopia japonica in winter
Japanese knotweed Fallopia japonica stand in winter showing bamboo-like canes
![Japanese knotweed Fallopia japonica habit](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Japanese knotweed Fallopia japonica habit
Japanese knotweed Fallopia japonica habit drawing showing thicket of the plant
![Japanese knotweed and Himalayan balsam seedlings](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Japanese knotweed and Himalayan balsam seedlings
Japanese knotweed Fallopia japonica and Himalayan balsam Impatiens grandiflora seedling comparison
![Japanese knotweed Fallopia japonica seedling](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Japanese knotweed Fallopia japonica seedling
Japanese knotweed Fallopia japonica seedling showing rounded leaves and pink stem
![Himalayan balsam Impatiens glandulifera](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Himalayan balsam Impatiens glandulifera
Himalayan balsam Impatiens glandulifera with details of flower, seed and seed pods, stem, roots, and growth habit.
![Himalayan balsam Impatiens glandulifera sketchbook style](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Himalayan balsam Impatiens glandulifera sketchbook style
Himalayan balsam Impatiens glandulifera study page with colour details of the red flushed stem, orchid like purple flowers, details of different colour forms, close up of the seed pod, wash on one green leaf, graphite or pencil tonal studies of another leaf, and details of the little red growths below where a leaf adheres to […]