AB

Abama

Abies

Abbotia

AC

Acorus

Acrostichum

AD

Adiantum

AG

Agave

AL

Alchemilla

Algoides

Alisma

Allium

Allosurus

Alpinus

AM

Americus

AN

Anacharis

Anogramma

Anthericum

AP

Apalanthe

AR

Arisarum

Aristolochia

Aron

Arum

AS

Asarum

Asparagus

Asphodeliris

Asphodelus

Aspidium

Asplenium

× Asplenophyllitis

AT

Athyrium

AZ

Azolla