
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
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden

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
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden

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
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden

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
Sketchbook study of this invasive aquatic plant, with botanical details, completed for FOR Sweden

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
Sketchbook illustration showing plant, habit and details. Also known as Swamp stonecrop, this plant is an invasive aquatic species in many areas.

Yellow waterlily Nuphar luteum
Yellow waterlily Nuphar luteum floating on water with developing “brandy bottle” seed flask

White waterlily Nymphaea alba
White waterlily Nymphaea alba shown floating on water with lily pads

White & Yellow waterlily Nymphaea alba & Nuphar luteum comparison
White & Yellow waterlily Nymphaea alba & Nuphar luteum comparison, shown in water.

Branched Bur-reed Sparganium erectum
Branched Bur-reed Sparganium erectum showing rhizomes, and plant with flowers and fruit. Illustration also shows details of an individual fruit, and of a female and male flower.

Arrowhead Sagittaria sagitarria
Arrowhead Sagittaria sagitarria showing underwater ribbon-like leaves and floating oval leaves. Emergent leaves are arrow-shaped. Illustration also shows flowers and fruit.

Broad-leaved Pondweed Potamogeton natans
Broad-leaved Pondweed Potamogeton natans with detail of fruiting spike, one seed, and one flower.

Frog’s-bit Hydrocharis morsus-ranae
Frog’s-bit Hydrocharis morsus-ranae showing plant with female flowers on the left, and one with male flowers on the right. Illustration shows rhizomes as well as floating orbicular leaves and flowers.

Water horsetail Equisetum fluviatile
Water horsetail showing two sterile stems and two fertile stems, one with leaves and one without. Also showing cross section of the stem, and the rhizome.

Parrots Feather Myriophyllum aquaticum
Parrots Feather Myriophyllum aquaticum showing rosettes of leaves below water. Also showing detail of the tiny flowers, and a vegetative and flowering spike.

Flowering rush Butomus umbellatus
Flowering rush Butomus umbellatus with details of individual flower, leaf cross section, stamen before and after dehiscence, and seedhead

Yellow water-lily Nuphar lutea
Yellow water-lily Nuphar lutea pencil drawing of flowers, brandy bottle seed head, and leaves floating on the water surface

White waterlily Nymphaea alba
White waterlily Nymphaea alba flower against a darker floating lily leaf, pencil

Water dock Rumex hydrolapathum
Water dock Rumex hydrolapathum pencil drawing

Reedmace Typha latifolia rhizome
Reedmace Typha latifolia rhizome detail with roots and vegetative shoot growing from a rhizome