catkins

Silver birch Betula pendula sketchbook page with a focus on the leaves

Weeping Willow Salix babylonica sprig of leaves showing elongate leaf shape

Weeping willow Salix babylonica tree with typical drooping branches and growth form

Sweet chestnut Castanea sativa chestnut flowers and duts in spiky seed case

Sweet chestnut Castanea sativa tree showing growth form

Hornbeam Carpinus betula leaves spray of winged fruit

Hornbeam Carpinus betulus tree showing typical growth and shape

Hazel showing hazelnut selection and iconic catkins

Hazel tree showing typical shrubby growth pattern and habit

Cottonwood tree showing habit and growth form

Silver Birch drawing showing elegant form and habit

Silver birch sprig with leaves and male and female catkins

Woolly willow Salix lanata sprig with catkins and small image of the tree shape

Willow Salix sprig with catkin

Oak Quercus robur pen and ink tree shape without leaves

Oak bark Quercus robur study

Oak polypore fungus piptoporus quercinus bracket fungus growing on the side of an oak tree

Crack willow Salix fragilis tree shape without leaves and individual sprig of leaves and flowering catkin

Common Alder Alnus glutinosa Cones and catkins pencil study with outline of the leaf behind

Common Alder Alnus glutinosa roots showing their distinctive growth habit

Common Alder Alnus glutinosa tree, pen and ink study of a tree in full leaf

Black poplar Populus nigra leaf flower and catkins

Pollarded Alder Alnusglutinosa tree in leaf