List other families
Acanthaceae
Achatocarpaceae
devilqueen, snake-eyes, putia
Adoxaceae
arrowwood, Korean spice viburnum
Aizoaceae
Alismataceae
arrowhead
Alseuosmiaceae
Alstroemeriaceae
Amaranthaceae
lamb's quarters, melde, goosefoot, wild spinach, fat-hen
Amaryllidaceae
Spring snowflake
Amaurochaetaceae
Anacampserotaceae
Anacardiaceae
smooth sumac, white sumac, upland sumac, scarlet sumac
Annonaceae
African custard-apple, wild custard apple, wild soursop, sunkungo
Anthocerotaceae
field hornwort
Apiaceae
Apocynaceae
Apodanthaceae
Aponogetonaceae
Aquifoliaceae
Araceae
Araliaceae
wild sarsaparilla, false sarsaparilla, shot bush, small spikenard, wild liquorice, rabbit root
Araucariaceae
living fossil
Arecaceae
Quindío wax palm
Aristolochiaceae
Asparagaceae
Asphodelaceae
Aspleniaceae
Asteliaceae
Asteraceae
silverleaf sunflower
Athyriaceae
Japanese painted fern
Aytoniaceae