Australian Tropical Rainforest Plants - Online edition
Click/tap on images to enlarge
![](../../images/features/fl_corolla_petals_number/char_fl62.jpg)
FL62 none No petals or petal-like structures
![](../../images/features/fl_corolla_petals_number/char_fl63.jpg)
FL63 of one petal or lobe
![](../../images/features/fl_corolla_petals_number/char_fl64.jpg)
FL64 of two petals or lobes
![](../../images/features/fl_corolla_petals_number/char_fl65.jpg)
FL65 of three petals or lobes
![](../../images/features/fl_corolla_petals_number/char_fl66.jpg)
FL66 of four petals or lobes
![](../../images/features/fl_corolla_petals_number/char_fl67.jpg)
FL67 of five petals or lobes
![](../../images/features/fl_corolla_petals_number/char_fl68.jpg)
FL68 of six or more petals or lobes
![](../../images/features/fl_corolla_petals_number/char_fl69.jpg)
FL69 fused to form an operculum Petals fused to one another to form a cap or horn-like structure which is usually shed as a complete unit as the flower matures. This may happen just prior to anthesis or it can occur quite early in the development of the flower.
This refers to the number of petals, lobes or teeth in the corolla, or in the perianth where the calyx and corolla are not clearly differentiated.
Copyright © CSIRO 2020, all rights reserved.
![](assets/fs_images/logo_print_footer.png)
Web edition hosted at https://apps.lucidcentral.org/rainforest