Arctostaphylos uva-ursi var. coactilis 'Morton'

Ardisia crenata 'Beni-kujaku'

Arenaria 'Wallowa Mountains'

Argyranthemum frutescens 'Grandaisy Red'

Ariocarpus fissuratus

Ariocarpus kotschoubeyanus var. macdowellii

Arisaema 'Crossing Over'

Arisaema candidissimum

Arisaema consanguineum 'Silver Center'

Arisaema dracontium

Arisaema engleri

Arisaema erubescens

Arisaema flavum ssp. tibeticum

Arisaema lobatum

Arisaema ringens

Arisaema robustum

Arisaema serratum

Arisaema sikokianum

Arisaema sp.

Arisaema thunbergii 'Variegated'

Arisaema thunbergii ssp. urashima

Arisaema triphyllum

Aristaloe aristata

Aristea glauca