trees

Oak sudden death Phytophthora ramorum fungi and algae pest on Oak tree Quercus

Oak spangle galls from wasp Tilia platyphyllos and Silk button galls from wasp Neuroterus numismalis on Oak leaf Quercus robu

Oak Quercus robur sketchbook page including flowers and young leaves

Magnolia sprig Magnolia grandiflora in flower with leaves not yet out

Elder Sambuccus nigra sketchbook page with detailed berries in full colour

Sea Buck-thorn Hippophae rhamnoides shrub pen and ink with colour wash

Sea Buckthorn shrub Hippophae rhamnoides.  Pen and ink illustration shows elongate leaves, low shrubby growth habit, and berries.

Lilac Syringa vulgaris tree pen and ink.  Illustration shows the tree in full bloom.

Lilac Syringa vulgaris tree pen and ink.  Illustration shows the tree in full bloom.

Magnolia tree Magnolia grandiflora tree pen and ink with colour wash.  Illustration shows the tree in flower, before the leaves appear.

Magnolia Magnolifia gradiflora tree, showing the tree in full flower, before the leaves appear.

Guelder rose shrub Viburnum opulus pen and ink with watercolour wash.  Illustration shows the shrub in bloom.

Guelder rose tree Viburnum opulus.  Illustration shows the shrub in blossom.

Medlar Mespilus germanica tree pen and ink with colour wash.  Illustration shows tree with fruit.

Medlar Mespilus germanica tree pen and ink.  Illustration shows tree in fruit

Staghorn sumac Rhus typhina tree pen and ink with colour wash

Staghorn Sumac Rhus typhina tree, with pinnate leaves and furry fruit pen and ink botanical illustration.

Witch-hazel tree Hamamelis virginiana in bloom in winter.  Illustration shows snow on the ground, and twigs visible.

Witch-hazel tree Hamamelis virginiana in bloom in winter.  Illustration shows snow on the ground, and twigs visible.

Plum Prunus domestica tree pen and ink with colour wash

Plum tree in fruit, showing purple fruit and fallen fruit on the ground

Peach tree Prunus persica tree in fruit showing tree form and peaches on branches and on ground.

Peach tree Prunus persica tree in fruit showing tree form and peaches on branches and on ground.

Lilac Syringa vulgaris flowering spike with leaves