Families of seed plants A
Foto header: Jacobaea Mill. (Asteraceae) © Luo Chen
Acanthaceae
Families of Seed Plants A
Actinidiaceae
Families of Seed Plants A
Alismataceae
Families of Seed Plants A
Alseuosmiaceae
Families of Seed Plants A
Annonaceae
Families of Seed Plants A
Apiaceae
Families of Seed Plants A
Apocynaceae (incl. Asclepidaceae)
Families of Seed Plants A
Araceae (incl. Lemnaceae)
Families of Seed Plants A
Araliaceae
Families of Seed Plants A
Argophyllaceae
Families of Seed Plants A
Aristolochiaceae (incl. Hydnoraceae and Lactoridaceae)
Families of Seed Plants A
Atherospermataceae
Families of Seed Plants A
Monogeneric families A (external links)
Families of Seed Plants A