fertility

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

Pomegranate Punica granatum fruit and halved fruit with leaf

Pomegranate Punica granatum tree in fruit showing typical growth

Linden or lime tree Tilia x europaea pen and ink line drawing with detail

Silver birch Betula pendula trees vignette

Silver Birch Betula pendula twig with buds and catkins and leaf

Silver Birch Betula pendula tree shape without leaves, close up of bark, and sprig with leaves and catkins

Silver birch Betula pendula pen and ink tree shape without leaves

Sage Salvia officinalis in flower

Silver birch Betula pendula bark study with a small layer of bark curling off the tree

Rice Oryza sativa plant

Lime Tilia europaea bark study

Holly Ilex aquifolium leaves with a cluster of red berries at the centre

Common comfrey Symphytum officinale plant with details of pink and blue flowers

African clawed toad Xenopus laevis