Scent
/sɛnt/
Definition
Scent refers to the smell produced by a plant, usually from volatile organic compounds released by flowers, leaves, stems, or fruit. It is a plant characteristic rather than a structure. In botany and horticulture, scent describes a detectable odor that can attract pollinators, deter herbivores, or vary with time of day, flower age, temperature, and humidity. It differs from flavor, which includes taste as well as smell.
Biological Role
- Pollinator attraction: In many flowering plants, scent helps guide pollinators to nectar or pollen, often working together with color and flower shape. Different chemical blends can attract bees, moths, flies, or beetles.
- Timing and release patterns: Emission often follows a daily rhythm. Some flowers become more noticeable at night to match nocturnal pollinators, while others are strongest during the day.
- Defense signaling: Leaves and stems may release scent compounds when damaged. These volatile chemicals can deter some herbivores or help attract predatory insects that feed on plant pests.
- Clue for identification: In horticulture and botany, scent can help distinguish similar plants or cultivars, especially among herbs, orchids, and flowering shrubs. Its strength may vary with temperature, light, and flower age.
Related Terms
Flower
Flower is the reproductive structure of a flowering plant, usually containing stamens, which produce pollen, and one or…
Pollination
Pollination is the transfer of pollen from the male part of a flower, the anther, to the female part, the stigma, of…
Nectar
Nectar is a sugary liquid produced by specialized glands called nectaries, usually in flowers and sometimes on leaves…
Petal
Petal refers to one of the individual parts of a flower’s corolla, the inner set of leaf-like structures located just…
Corolla
Corolla refers to the collective petals of a flower. It is a floral structure positioned just inside the sepals and…
Perianth
Perianth is the collective term for the non-reproductive outer parts of a flower that surround the stamens and pistil…
Throat
Throat refers to the inner opening or narrowed entrance of a flower’s corolla, the collective petals, especially in…
Tube
In botany, a tube is a cylindrical or hollow part formed when tissues are naturally elongated or fused into a narrow…