Complete Flower:
A flower is said to be complete when all the four floral whorls are present as in China rose (Hibiscus rosa-sinensis), Pea (Pisum sativum), Datura (Datura metel) etc. These flowers are always bisexual.
Incomplete Flower:
A flower is said to be incomplete when any one or more of the four floral whorls are absent as in Beta sp, Cucurbita sp, gourd, etc.
Difference between Complete and Incomplete Flower:
| Complete Flowers | Incomplete Flowers |
| 1. Complete flower is always bisexual | 1. Incomplete flower may be bisexual or unisexual |
| 2. All the four floral whorls-calyx, corolla, androecium and gynoecium are present | 2. It lacks one or more of the four floral whorls |
| 3. In complete flower, both are accessory floral whorls are always present. | 3. In incomplete flower, two or one accessory floral whorls are present or may not be present. |
| 4. It is regarded as a typical flower | 4. It is not regarded as a typical flower. |
| 5. Example: Hibiscus, Daturia, etc | 5. Example: Cucurbita, Polianthes |