Jump to: Ac Ad Ae
- acaulis => Cryptanthus acaulis var. acaulis
- acaulis var. zebrina => Cryptanthus zonatus
- acaulis var. zonata => Cryptanthus zonatus
- Achupalla
- achyrostachys
- achyrostachys var. achyrostachys => achyrostachys
- achyrostachys var. stenolepis => achyrostachys
- acorifolia => Guzmania acorifolia
- acostae => rhomboidea
- acosta-solisii => Lemeltonia acosta-solisii
- acroleuca => tricolor
- acuminata
- acutifolia => excluded taxa
- adamsii
- adpressa => Racinaea adpressa
- adpressa var. adpressa => Racinaea adpressa subsp. adpressa
- adpressa var. miniata => Racinaea miniata
- adpressa var. orthiantha => Racinaea adpressa subsp. orthiantha
- adpressa var. tonduziana => Racinaea schumanniana
- adpressiflora
- adscendens => Racinaea rothschuhiana
- amazonica => Werauthia gigantea
- amethystina => Vriesea amethystina
- amicorum => Cipuropsis amicorum
- amoena Mez => tenuifolia var. vaginata
- amoena Lodd. => Billbergia amoena
- ampla => lajensis
- augusta => Hohenbergia augusta
- augustae-regiae => biflora
- aurantiaca => Racinaea tetrantha var. aurantiaca
- aurantiaca var. densiflora => Racinaea tetrantha var. densiflora
- aurantiaca var. miniata => Racinaea tetrantha var. miniata
- aurantiaca var. scarlatina => Racinaea tetrantha var. scarlatina
- aurea
- aurea var. minor
- aureobrunnea => humilis
- australis
- autumnalis => tenuifolia