1. The origin, development, and evolutionary history of plants.
Usage: technical; biology
2. The study of how plants develop and evolve over time.
Usage: technical; botany

Examples

• The phytogeny of flowering plants reveals their adaptation to diverse environments.
• Scientists use fossil records to trace the phytogeny of ancient plant species.
• Understanding phytogeny helps botanists classify modern plant families.
• The phytogeny of grasses shows their relatively recent emergence in Earth's history.
• Molecular analysis has revolutionized our understanding of plant phytogeny.