Acarpous is a botanical adjective meaning not producing fruit, and by extension sterile, barren, or unfruitful.
How botanists use it
The term may describe a plant, flower, shoot, cultivar, condition, or structure that does not bear fruit.
Permanent or temporary
Fruitlessness may be genetically fixed, developmentally normal, environmentally induced, or temporary because pollination or fertilization failed.
Related contrasts
| Term | Meaning |
|---|---|
| Acarpous | not producing fruit |
| Parthenocarpic | producing fruit without fertilization |
| Seedless | fruit present, mature seeds absent or reduced |
| Male flower | produces pollen but has no functional ovary |
| Fruitful | producing fruit successfully |
Frequently asked questions
What does acarpous mean?
In botany, acarpous means not producing fruit; sterile or unfruitful.
Is acarpous the same as seedless?
No. A seedless fruit still forms fruit, while an acarpous plant or flower does not produce fruit.
Can an acarpous plant still flower?
Yes. A plant may produce flowers that are sterile, male-only, incompatible, or unable to develop fruit.
Is temporary crop failure acarpous?
The word can describe fruitlessness, but temporary failure may result from weather, pollination, stress, or management rather than an inherent trait.
What is the opposite of acarpous?
Fruitful, fruit-bearing, fertile, or carpous, depending on context.
Can poor pollination make a plant fruitless?
Yes. In many crops, inadequate or incompatible pollen prevents fertilization and fruit set.
Can too much nitrogen reduce fruiting?
Excess nitrogen can promote vegetative growth at the expense of flowering or fruiting in some plants.
Why does a tree flower but not fruit?
Possible causes include incompatible pollen, frost, heat, rain, lack of pollinators, juvenility, pruning, stress, or sterile flowers.
Does every flower become a fruit?
No. Many flowers naturally abort, are male, are sterile, or fail to be pollinated and fertilized.
Is this site a substitute for local horticultural advice?
No. Cultivar, climate, soil, pests, and local conditions require extension or qualified professional guidance.