Alpine Timothy 
Alpinia havilandii 
Alstroemeria hookeri 
Alstroemeria pallida 
Alstroemeria revoluta 
Alstroemeria umbellata 
Althenia orientalis 
Amazon Lily 
American blue-eyed grass 
American Crinum 
American Eelgrass 
American False Hellebore 
American fox-sedge 
Amethyst Meadow Squill 
Amorphophallus bufo 
Amorphophallus hildebrandtii 
Amorphophallus titanum 
Anacamptis boryi 
Anacamptis coriophora 
Anacamptis israelitica 
Anacamptis longicornu 
Anacamptis morio syriaca 
Anacamptis sancta 
Anacamptis x feinbruniane