Bitter vetch Lathyrus linifolius
Bitter vetch Lathyrus linifolius showing purple flowers and pods both ripe and brown and earlier on, still green. Tendrils and winged stem shown clearly along with paied leaves
Bitter wood vetch Vicia orobus
Bitter wood vetch Vicia orobus showing the pale mauve flowers and pale green pods and paired leaves
Bittersweet Solanum dulcamara
Bittersweet Solanum dulcamara with distinctive purple and yellow flowers and one bright red berry
Black eyed Susan Rudbeckia hirta
Black eyed Susan Rudbeckia hirta with three blooms, one in flower, one in bud, and one going over
Black horehound Ballota nigra
Black horehound Ballota nigra with detail on individual purple flower
Black Nightshade Solanum nigrum
Black Nightshade Solanum nigrum sprig with setails of seed, flower, stamen, and berry included
Black poplar Populus nigra leaf flower and catkins
Black poplar Populus nigra leaf flower and catkins
Blackberry Rubus fruticosa
Blackberry Rubus fruticosa showing flowers, ripe and unripe fruit, and a leaflet
Blackthorn Prunus spinosa
Blackthorn Prunus spinosa with a sprig showing spine, leaf and fruit and the other sprig showing blossom
Abscission diagram
Abscission diagram showing ho w the abscission layer lets the leaf fall off without exposing the plant to pathogens
Bugle Ajuga reptans
Bugle Ajuga reptans plant with stolon
Alder buckthorn Rhamnus frangula
Alder buckthorn Rhamnus frangula sprig with close up of berry and flower, berries red and purple
Pollarded Alder Alnusglutinosa
Pollarded Alder Alnusglutinosa tree in leaf
Alpine ladies mantle alchemilla alpina
Alpine ladies mantle alchemilla alpina with pale underside of leaves ahown and fibrous root area
Arrowhead Sagittaria sagittifolia
Arrowhead Sagittaria sagittifolia pencil image showing plant above and below wtaer and the different leaves in both habitats, in flwoer
Ash dieback symptoms Fraxinus excelsior Chalaria
Ash dieback symptoms Fraxinus excelsior Chalaria showing damaged inside of wood, damage on bark, little white fungal bodies, withered leaves on the branch, and individuall diseased leaf, the tree with exposed branches due to die back and a branch with siwtheres fronds of leaves on it
Ash Fraxinus excelsior
Ash Fraxinus excelsior pen and ink stippled drawing of the tree without leaves
Ash Fraxinus excelsior twig and leaf
Ash Fraxinus excelsior twig in bud and leaf spray
Autumn crocus Colchicum autumnale
Autumn crocus Colchicum autumnale two flowers and leaf
Autumn leaf
Autumn leaf study of an Acer showing bright vivid red and yellow colours, leaf has damage and minor holes
Auxin and growth diagram
Auxin diagram showing how applying auxin to the top of a plant encourages vertical rather than lateral growth
Avalanche rose Rosa
Avalanche rose Rosa two in bloom with dark leaves and white petals
Barberry Burberis vulgaris
Barberry Burberis vulgaris with red berries, yellow flowers and spiny twigs
Barren strawberry Potentilla sterilis
Barren strawberry Potentilla sterilis with stolom and small inedible fruit