| Araucaria heterophylla |
Norfolk Island Pine; Norfolk Pine |
| Archipsocus nomas |
|
| Archontophoenix alexandrae |
King Palm |
| Archontophoenix cunninghamiana |
Bungalow Palm; Piccabben Palm |
| Arctotis stoechadifolia |
Blue Arctotis |
| Ardisia crenata |
Coralberry; Coral Berry; Australian Holly; Hen's Eyes |
| Ardisia elliptica |
Shoebutton Ardisia |
| Ardisia escallonioides |
Island Marlberry; Dogberry |
| Areca catechu |
Catechu Palm; Betelnut Palm; Betel Nut Palm |
| Arenaria serpyllifolia |
Thyme-Leaved Sandwort |
| Argemone mexicana |
Yellow Thistle; Mexican Poppy; Prickly Poppy |
| Argyranthemum frutescens |
White Marguerite; Bush Daisy |
| Argyranthemum tenerifae |
Canary Island Marguerite; Glaucous Marguerite |
| Aristolochia argentina |
Argentine Dutchman's Pipe |
| Aristolochia grandiflora |
Pelican Flower |
| Aristolochia littoralis |
Calico Flower; Dutchman's Pipe |
| Aristolochia macroura |
Dutchman's Pipe Vine |
| Arivela viscosa |
Asian Spiderflower; Asian Spider Flower; Tick Weed; Viscid Spider-Flower |
| Armadillidium vulgare |
Common Pill Woodlouse; |
| Armoracia rusticana |
Horseradish; Horse Radish; Horseradish |
| Arorathrips spiniceps |
|
| Arrhenophagus chionaspidis |
|
| Artabotrys hexapetalus |
Ylang-Ylang; Climbing Ylang-Ylang |
| Artemisia arborescens |
Shrubby Mugwort; Wormwood; Worm Wood |
| Artemisia stelleriana |
Beach Wormwood; Dusty Miller |
| Artocarpus altilis |
Breadfruit; Bread Fruit |
| Artocarpus integer |
Jackfruit; Jack Fruit |
| Artocarpus lacucha |
Monkey Fruit; Monkey Jack |
| Arundo donax |
Cow Cane; Giant Reed |
| Asclepias curassavica |
Wild Ipecac; Red Milkweed; Milk Weed; Blood-Flower |
