Alstroemeria ligtu
Peruvian lily
Alternanthera brasiliana
Ruby Leaf
Althaea officinalis
Marsh-mallow
Alysicarpus ovalifolius
Alyce Clover
Amaranthus hybridus
Green Amaranth
Amaranthus retroflexus
Common Amaranth
Ambrosia artemisiifolia
Ragweed
Amelanchier lamarckii
Juneberry
Ammi majus
Bullwort
Ammophila arenaria
Marram
Amsinckia micrantha
Common Fiddleneck
Anacamptis morio
Green-winged Orchid
Anacamptis pyramidalis
Pyramidal Orchid
Anamirta cocculus
Indian Berry
Anaphalis margaritacea
Pearly Everlasting
Andrographis paniculata
Creat
Andromeda polifolia
Bog-rosemary
Androsace villosa
Hairy Androsace
Anemone nemorosa
Wood Anemone
Angelica archangelica
Garden Angelica
Angelica sylvestris
Wild Angelica
Annona squamosa
Sugar Apples
Anomodon viticulosus
Rambling Tail-moss
Antennaria dioica
Mountain Everlasting