![Alder Alnus glutinosa leaves and cones](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Alder Alnus glutinosa leaves and cones
Sprig of Alder showing several leaves and three ripe cones
![Sketch of Pear blossom and leaf Pyrus communis](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Sketch of Pear blossom and leaf Pyrus communis
Sketch of Pear blossom and leaves of Pyrus communis completed in pencil, tonal and line drawing
![Sheet of Perry Pear sketches Pyrus communis](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Sheet of Perry Pear sketches Pyrus communis
Sheet of Perry Pear sketches Pyrus communis completed in pencil
![Pencil drawing of Pear and leaves Pyrus communis](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Pencil drawing of Pear and leaves Pyrus communis
Pencil drawing of Pear and leaves Pyrus communis showing two fruit and a few leaves
![Pear leaf Pyrus communis](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Pear leaf Pyrus communis
Pear leaf Pyrus communis, tonal study in graphite pencil
![Pear fruit Pyrus communis leaves tonal study](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Pear fruit Pyrus communis leaves tonal study
Pear fruit Pyrus communis leaves tonal study showing typical growth pattern
![Drawing of Pear blossom Pyrus communis](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Drawing of Pear blossom Pyrus communis
Drawing of Pear blossom Pyrus communis. Pencil line drawing.
![Line drawing of Pear blossom Pyrus communis](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Line drawing of Pear blossom Pyrus communis
Line drawing of Pear blossom Pyrus communis showing tip of branch, blossom and leaves
![Blossom of Pear Pyrus communis tonal study](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Blossom of Pear Pyrus communis tonal study
Blossom of Pear Pyrus communis tonal study. Graphite sketch.
![Tonal study of pear blossom](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Tonal study of pear blossom
Tonal study of pear blossom showing flowers and leaves, sketchbook piece.
![Three pear blossom flowers](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Three pear blossom flowers
Three pear blossom flowers. Pencil botanical illustration.
![Study of Pear leaves and flower Pyrus communis](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Study of Pear leaves and flower Pyrus communis
Study of Pear leaves and flower Pyrus communis, cut to white.
![Scots pine Pinus sylvestris cone and needles](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Scots pine Pinus sylvestris cone and needles
Scots pine Pinus sylvestris cone and needles. Pen and ink illustration with top colour.
![Downy birch Betula pubescens (colour)](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Downy birch Betula pubescens (colour)
Downy birch Betula pubescens pen and ink illustration with watercolour top wash.
![Sessile Oak tree Quercus petraea](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Sessile Oak tree Quercus petraea
Sessile Oak tree Quercus petraea showing habit and twisted branches
![Cannock chase berry Vaccinium x inermedium](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Cannock chase berry Vaccinium x inermedium
Cannock chase berry Vaccinium x inermedium V. myrtillus x V. vitis-idaea
![Carbon cycle based around a tree, fully annotated](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Carbon cycle based around a tree, fully annotated
Illustration showing annotated carbon cycle including images of leaf litter detritovores, soil micro-organisms, root tips, and the importance of respiration and photosynthesis For more on this illustration, check out my blog
![Carbon cycle centred around a tree](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Carbon cycle centred around a tree
Illustration of the Carbon cycle, with all the elements and chemicals involved in the cycle (but omitting arrows and english text). For more on this illustration, check out my blog
![Carbon cycle: Beech tree with roots, leaf litter, and fungal hyphae](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Carbon cycle: Beech tree with roots, leaf litter, and fungal hyphae
Used as the basis for a diagram showing the Carbon cycle. For more on this illustration, check out my blog
![Balsam poplar Populus balsamifera catkins fruit and leaves](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Balsam poplar Populus balsamifera catkins fruit and leaves
Balsam poplar Populus balsamifera catkins fruit and leaves with annotations within a border Illustration from “The Treeline: The last forest and the future of the planet” by Ben Rawlence (publ. Jan 2022)
![Holly Parachute fungus Marasmius hudsonii](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Holly Parachute fungus Marasmius hudsonii
Holly Parachute fungus Marasmius hudsonii. Illustration shows this tiny delicate fungus growing on dead and damp Holly leaves.
![California Yerba santa leaf shape](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
California Yerba santa leaf shape
California Yerba santa Eriodictyon californicum leaf shape
![Hairy Yerba santa leaf shapes](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Hairy Yerba santa leaf shapes
Hairy Yerba santa leaf shapes E trichocalyx var lanatum, showing margins and venation
![Hairy Yerba santa E. trichocalyx leaf shape](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Hairy Yerba santa E. trichocalyx leaf shape
Hairy Yerba santa Eriodictyon leaf shapes E trichocalyx var trichocalyx showing margins and venation