Adiantum capillus-veneris
Maidenhair Fern
Adiantum caudatum
Tailed Maidenhair
Adiantum venustum
Himalayan Maidenhair Fern
Adonis annua
Pheasant's-eye
Adoxa moschatellina
Moschatel
Aegonychon purpureocaeruleum
Purple Gromwell
Aegopodium podagraria
Ground-elder
Aesculus hippocastanum
Horse-chestnut
Aethusa cynapium
Fool's Parsley
Agapanthus sp.
African lily
Agave parviflora
Ageratum conyzoides
Billygoat-weed
Aglaonema commutatum
Poison Dart Plant
Agrimonia eupatoria
Agrimony
Agrimonia procera
Fragrant Agrimony
Agrostemma githago
Corncockle
Agrostis capillaris
Common Bent
Aira caryophyllea
Silver Hair-grass
Aira praecox
Early Hair-grass
Ajuga chamaepitys
Ground-pine
Ajuga reptans
Bugle
Alcea rosea
Hollyhock
Alchemilla alpina
Alpine Lady's-mantle
Alchemilla filicaulis
Hairy Lady's-mantle