Arctostaphylos x 'Sunset' Arctostaphylos 'Green Bay'
Arctostaphylos 'Greensphere' Arctostaphylos 'John Dourley'
Arctostaphylos 'Monica' Arctostaphylos 'Pacific Mist'
Arctostaphylos andersonii var. pallida Arctostaphylos densiflora
Arctostaphylos densiflora 'Emerald Carpet' Arctostaphylos densiflora 'Harmony'
Arctostaphylos densiflora 'Howard McMinn' Arctostaphylos densiflora 'Sentinel'
Arctostaphylos densiflora 'White Lanterns' Arctostaphylos diversifolia
Arctostaphylos diversifolia var. planifolia Arctostaphylos edmundsii
Arctostaphylos edmundsii var. parvifolia 'Bert Johnson' Arctostaphylos edmundsii var. parvifolia 'Bronzemat'
Arctostaphylos glandulosa ssp. glandulosa Arctostaphylos glauca
Arctostaphylos hookeri 'Buxifolia' Arctostaphylos hookeri 'Mills'
Arctostaphylos hookeri 'Monterey Carpet' Arctostaphylos hookeri 'Wayside'
Arctostaphylos hookeri ssp. franciscana Arctostaphylos hookeri ssp. hookeri
Arctostaphylos hookeri ssp. montana Arctostaphylos hooveri
Arctostaphylos imbricata ssp. imbricata Arctostaphylos manzanita
Arctostaphylos nevadensis 'Chipeta' Arctostaphylos pajaroensis
Arctostaphylos patula Arctostaphylos pumila
Arctostaphylos purissima Arctostaphylos refugioensis
Arctostaphylos x repens Arctostaphylos stanfordiana
Arctostaphylos stanfordiana ssp. bakeri Arctostaphylos stanfordiana ssp. bakeri 'Louis Edmunds'
Arctostaphylos uva-ursi Arctostaphylos uva-ursi 'Massachusetts'
Arctostaphylos uva-ursi 'Microphylla' Arctostaphylos uva-ursi 'Point Reyes'
Arctostaphylos uva-ursi 'Radiant' Arctostaphylos viridissima
Arctostaphylos viscida Arctostaphylos wellsii
Arctotheca calendula Arctotis acaulis
Arctotis x hybrida Arctotis x hybrida 'Sunset Gold'
Arctotis venusta Ardisia crenata
Ardisia escallonioides Ardisia japonica
Ardisia japonica 'Cherimen' Ardisia japonica 'Variegata'
Arenaria montana Arenaria tmolea
Arenga engleri Argemone grandiflora
Argemone mexicana Argemone mexicana 'Alba'
Argemone mexicana var. ochroleuca Argyranthemum 'Sunlite'
Argyranthemum foeniculaceum Argyranthemum foeniculaceum 'Jamaican Primrose'
Argyranthemum frutescens Argyranthemum frutescens 'Argymip (Molimba® Pink)'
Argyranthemum frutescens 'Vanilla Butterfly®' Argyranthemum x hybrida 'Comet White'
Argyranthemum vera Argyreia nervosa
Arisaema ringens Arisaema sikokianum
Arisaema triphyllum Aristea ecklonii
Aristolochia chilensis Aristolochia gigantea
Aristolochia labiata Aristolochia macrophylla
Aristotelia fruticosa Armeria 'Apple Blossom'
Armeria 'Dusseldorf Pride' Armeria 'Juncea'
Armeria 'Victor Reiter' Armeria girardii
Armeria leucocephala 'Corsica' Armeria maritima
Armeria maritima 'Bloodstone' Armeria maritima 'Cotton Tail'
Armeria maritima 'Pink Lusitanica' Armeria maritima 'Rubrifolia'
Armeria maritima 'Sea Thrift' Armeria maritima 'Splendens'
Armeria pseudarmeria 'Joystick Lilac' Armeria pseudarmeria 'Joystick Red'
Armoracia rusticanna 'Variegata' Arnica chamissonis