| Common name (English) | |
|---|---|
| Abutilon theophrasti | Velveteaf, China jute |
| Acanthus mollis | Bear's breeches |
| Acer negundo | Ash-Leaf Maple |
| Achillea millefolium | Yarrow , Milfoil |
| Aeonium arboreum | Irish rose, Tree Aeonium |
| Aesculus hippocastanum | Horse chestnut, European Horse Chestnut |
| Agave americana | Centrury plant, American agave |
| Agave deserti | Century plant |
| Agave salmiana | Giant Century Plant |
| Ageratum houstonianum | Flossflower |
| Agrostemma githago | Cockle |
| Ailanthus altissima | Tree of heaven, Chinese sumac |
| Albizia julibrissin | Persian silk tree, mimosa |
| Albizia lophantha | |
| Allium sativum | garlic |
| Aloe vera | Aloe |
| Aloiampelos ciliaris | Common Climbing Aloe |
| Alstroemeria | |
| Alternanthera pulchella | |
| Amaranthus emarginatus var. pseudogracilis |