Follicle
/ˈfɑlɪkəl/
Definition
Follicle refers to a dry, one-chambered fruit formed from a single carpel, a seed-bearing unit of the flower. At maturity, it opens along one side, called a suture, to release its seeds. This distinguishes it from a legume, which opens along two sides. Follicles occur in some flowering plants and may appear singly or in a cluster of separate fruits from one flower.
Botanical Significance
- Reproductive role: It protects developing seeds until maturity, then opens to release them. This helps complete the plant life cycle by moving seeds out of the parent structure at the right stage.
- Value in identification: Its presence, shape, texture, and the way it splits can help botanists identify plant groups and separate similar-looking species. Fruit features are often more reliable than leaves alone.
- Common in certain ornamentals: It appears in several flowering plants, including examples in the milkweed and magnolia groups. In some species, multiple units develop together, creating a distinctive fruiting display after bloom.
- Seed collection timing: For gardeners and growers, mature fruiting structures can signal when seeds are nearly ready to collect. Waiting until they begin to dry or split often improves the chance of gathering viable seed.
Related Terms
Fruit
Fruit, in botany, is the mature ovary of a flower, sometimes with nearby tissues attached, that develops after…
Pericarp
Pericarp refers to the wall of a fruit that develops from the ovary wall after fertilization. It is a plant structure…
Ovary
Ovary refers to the enlarged basal part of a flower’s pistil, or female reproductive structure, that contains one or…
Carpel
Carpel refers to the female reproductive structure of a flower. A single carpel consists of an ovary, which contains…
Placenta
Placenta refers to the tissue inside a flower’s ovary where one or more ovules are attached. It is a plant structure…
Placentation
Placentation describes the arrangement of ovules inside a flower’s ovary and the way they are attached to the placenta…
Seed
Seed is a plant structure formed after fertilization that contains a young plant embryo, stored food, and a protective…
Flower
Flower is the reproductive structure of a flowering plant, usually containing stamens, which produce pollen, and one or…