| A | B |
|---|
| Alternation of generations | A lifecycle in which sexual reproduction gives rise to asexual reproduction, which in turn gives rise to sexual reproduction |
| Annual plants | Plants that live for only one year |
| Biennial plants | Plants that live for two years |
| Botony | The study of plants |
| Cotyledon | A "seed leaf" which develops as a part of the seed. It provides nutrients to the developing seedling and eventually becomes the first leaf of the plant. |
| Deciduous plant | A plant that loses its leaves before winter |
| Dominant generation | In alternation of generations, the generation that occupies the largest portion of the lifecycle |
| Girdling | The process of cutting away a ring of inner and outer bark all the way around a tree trunk |
| Leaf margin | The characteristics of the leaf edge |
| Leaf mosaic | The arrangement of leaves on the stem of a plant |
| Perennial plants | Plants that grow year after year |
| Phloem | Vascular tissue that carries substance downward in a plant |
| Pollen | A fine dust that contains the sperm of seed-producing plants |
| Reproductive plant organs | The flowers, fruits, and seeds of a plant |
| Undifferentiated cells | Cells that have not specialized in any particular function |
| Xylem | A vascular tissue that carries substances upward in a plant |
