invasive species

Japanese rose Rosa rugosa habit showing mature bush in flower

Japanese knotweed Fallopia japonica and Himalayan balsam Impatiens grandiflora seedling comparison

Japanese knotweed Fallopia japonica seedling showing rounded leaves and pink stem

Japanese Rose Rosa rugosa sketchbook study page and habit sketch

Japanese Rose Rosa rugosa graphite leaflet showing shiny leaflets and dentition on margin

Rosehip cross section sketchbook study showing seeds and remnants of sepals

Skunk Cabbage Lysichiton americanus sketchbook study page showing detail of flower and plant

Skunk Cabbage habit drawing showing a clump of plants with distinctive yellow spathes

Skunk Cabbage Lysichiton maericanus graphite drawing leaf with person to show scale

Tree of Heaven Allanthus alitissima  comparing bark of mature tree (on left) with young tree (on right)

Tree of Heaven AIlanthus alitissima bark of old tree showing grey colour and deep fissures

Tree of Heaven AIlanthus alitissima bark of young tree showing heart shaped leaf scar

Giant Hogweed Heracleum mantegazzianum habit drawing

Japanese Hop Humulus japonicus sketchbook study page.  Showing hops, seedling, stems detail, comparisons with the European common Hop, and male and female flowers

Persian Hogweed Heracleum persicum sketchbook study showing rounded curve of flowering head, and convex toothed leaf lobes.

Tamarisk or Athel pine Tamarisx aphylla branch with flowers and leaves

False Virginia creeper Parthenocissus inserta showing berries, flowers and tendrils free of suckers.  For more, check out my blog

False acacia Robinia pseudoacacia with detail of the grey bark and of one opened seed pod

Entire leaved Cotoneaster Cotoneaster‌ integrifolius sprig showing leaf rosette, berries, and detail of one flower.  For more on Cotoneassters, check out my blog

Entire leaved cotoneaster Cotoneaster integrifolius detail of small leaf rosette, one berry, and the underside of a leaf.

Broad leaved rush Juncus planifolius showing its growth habit, wide leaves, and flowering spike. Botanical illustration by Lizzie Harper

Brazilian Giant rhubarb Gunnera manicata showing a flowering spike in front of one of the plant’s gigantic leaves

Hottentot Fig Carpobrotus edulis showing the large pink flowers and pale succulent leaves

Himalayan balsam Impatiens glandulifera with details of flower, seed and seed pods, stem, roots, and growth habit.