![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
![Oak tree Quercus robur](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Oak tree Quercus robur
Oak tree Quercus robur in full leaf. Illustration from The Hidden Universe: Adventures in Biodiversity by Alexandre Antonelli
![Wild Cherry Blossom Prunus avium](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Wild Cherry Blossom Prunus avium
Sprig of blossom of the wild cherry with early emergent leaves
![Plum Prunus domesticus Pen and ink with colour](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Plum Prunus domesticus Pen and ink with colour
Plum Prunus prunus pen and ink illustration with watercolour wash. Showing details of half plum with stone, and white blossom on twig.
![Yew Taxus baccata](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Yew Taxus baccata
Yew Taxus baccata sprig and detail of lone berry
![Wych elm Ulmus glabra](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Wych elm Ulmus glabra
Wych elm Ulmus glabra with fruit, flower, and leaves on twig
![Woolly willow Salix lanata](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Woolly willow Salix lanata
Woolly willow Salix lanata sprig with catkins and small image of the tree shape
![Willow Salix](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Willow Salix
Willow Salix sprig with catkin
![Wild service tree Sorbus torminalis](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Wild service tree Sorbus torminalis
Wild service tree Sorbus torminalis with white flowers and an autumn leaf with fruit
![Tulepo Nyssa ogoche](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Tulepo Nyssa ogoche
Tulepo Nyssa ogoche sprig showing fruit, flowers, and a close up of one flower
![Diagram of schematic tree](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Diagram of schematic tree
Diagram of schematic tree, very simplified colour wash over pen and ink showing how the root system is as large as the tree above ground
![Sycamore Acer pseudoplatanus](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Sycamore Acer pseudoplatanus
Sycamore Acer pseudoplatanus leaves with winged fruit amd flowers
![Snowball tree Viburnum opulus sterile](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Snowball tree Viburnum opulus sterile
Snowball tree Viburnum opulus sterile with detail of individual flowers
![Silver birch Betula pendula](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Silver birch Betula pendula
Silver birch Betula pendula pen and ink tree shape without leaves
![Silver Birch Betula pendula twig and leaf](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Silver Birch Betula pendula twig and leaf
Silver Birch Betula pendula twig with buds and catkins and leaf
![Silver Birch Betula pendula 2](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Silver Birch Betula pendula 2
Silver Birch Betula pendula tree shape without leaves, close up of bark, and sprig with leaves and catkins
![Silver birch Betula pendula bark](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Silver birch Betula pendula bark
Silver birch Betula pendula bark study with a small layer of bark curling off the tree
![Scots pine Pinus sylvestris](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Scots pine Pinus sylvestris
Scots pine Pinus sylvestris tuft with mature cone and green cones
![Scots pine Pinus sylvestris trees](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Scots pine Pinus sylvestris trees
Scots pine Pinus sylvestris trees in pen and ink from young dapling to mature adult tree
![Rowan Sorbus aucuparia](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Rowan Sorbus aucuparia
Rowan Sorbus aucuparia sprig of leaves, clutch of orange berries and white flowers
![Rowan Sorbus aucuparia tree](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Rowan Sorbus aucuparia tree
Rowan Sorbus aucuparia tree ink drawing without leaves
![Rowan Sorbus aucuparia tree sapling](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Rowan Sorbus aucuparia tree sapling
Rowan Sorbus aucuparia tree sapling tree without leaves, in pen and ink
![Oak Quercus robur](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Oak Quercus robur
Oak Quercus robur pen and ink tree shape without leaves
![Oak bark Quercus robur](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Oak bark Quercus robur
Oak bark Quercus robur study