Lesser Periwinkle Vinca minor compared to Greater Periwinkle Vinca major
Lesser Periwinkle Vinca minor compared to Greater Periwinkle Vinca major. Sketchbook study sheet shows details of flowers, leaves, leaf venation, a habit sketch, and cross sections of the periwinkle flowers.
Common Blue sow-thistle Cicerbita macrophylla compared to Alpine Sow-thistle Cicerbita alpina
Common Blue-sow thistle Cicerbita macrophylla sketchbook page compared to Alpine Sow-thistle Cicerbita alpina. Details of leaf venation, habit sketch, individual ray florets, seed information, and associated comparative details of the Alpine Sow-thistle
Japanese knotweed Fallopia japonica in winter
Japanese knotweed Fallopia japonica stand in winter showing bamboo-like canes
Giant Hogweed Heracelum mantegazianum sketchbook studies
Giant Hogweed Heracelum mantegazianum sketchbook studies showing detail of leaves, stem, and seeds.
Canadian Goldenrod Solidago canadensis sketchbook study
Canadian Goldenrod Solidago canadensis sketchbook study page with comparisons to Solidago gigantea
Tree of Heaven Ailanthus altissima sketchbook study page
Tree of Heaven Ailanthus altissima sketchbook study page and habit sketch
Small Balsam Impatiens parviflora sketchbook study
Small Balsam Impatiens parviflora sketchbook study showing cross section of flower and details of seeds and exploded seed case.
Garden lupin Lupinus regalis habit
Garden lupin Lupinus regalis habit showing a red and yellow variety
Blue bonnet Lupin Lupinus polyphyllus sketchbook study
Blue bonnet Lupin Lupinus polyphyllus sketchbook study page. Includes information on habit, cross section of flower, seed pods, and leaf venation.
Persian Hogweed and Giant Hogweed comparison
Persian Hogweed Heracelum persicum and Giant Hogweed Heracelum mantegazzianum comparison with info on flower shape, umbel shape, and leaf differences
Milkweed Asclepias syriaca sketchbook study
Milkweed Asclepias syriaca sketchbook study page with written notes and info on seed pods, flowers, roots, and seeds
Tree of Heaven Ailanthus altissima habit
Tree of Heaven Ailanthus altissima habit drawing showing mature tree in flower
Small Balsam Impatiens parviflora habit
Small Balsam Impatiens parviflora habit drawing of a clump of plants
Persian Hogweed Heracleum persicum habit
Persian Hogweed Heracleum persicum in flower showing habit and growth form
Milkweed Asclepias syriaca habit
Milkweed Asclepias syriaca habit drawing showing two plants in flower
Lupin Lupinus polyphyllus habit
Lupin Lupinus polyphyllus habit drawing showing palmate leaves and flower spikes
Japanese knotweed Fallopia japonica habit
Japanese knotweed Fallopia japonica habit drawing showing thicket of the plant
Japanese Hop Humulus japonica habit
Japanese Hop Humulus japonica habit drawing showing how the plant climbs and spreads
Himalayan balsam Impatiens glandulifera habit
Himalayan balsam Impatiens glandulifera habit drawing showing entire plant
Canada Goldenrod Solidago canadensis habit
Canadian Goldenrod Solidago canadensis habit drawing showing entire plant
Japanese rose Rosa rugosa habit drawing
Japanese rose Rosa rugosa habit showing mature bush in flower
Japanese knotweed and Himalayan balsam seedlings
Japanese knotweed Fallopia japonica and Himalayan balsam Impatiens grandiflora seedling comparison
Japanese knotweed Fallopia japonica seedling
Japanese knotweed Fallopia japonica seedling showing rounded leaves and pink stem
Japanese Rose Rosa rugosa sketchbook study
Japanese Rose Rosa rugosa sketchbook study page and habit sketch