Arisaema triphyllum
Other plants you might like if you grow jack-in-the-pulpit.
Abyssinian banana
Ensete ventricosum
acaena
Acaena inermis 'Purpurea'
African fern pine
Afrocarpus gracilior
African lily
Agapanthus africanus
agave
Agave geminiflora RASTA MAN
Akane Apple
Malus 'Akane'
alder-leaved serviceberry
Amelanchier alnifolia 'Regent'
Allegheny serviceberry
Amelanchier laevis
