Identify, FTP, this reproductive structure of some plants, containing stamens and pistils.
Despite evidence of the defensive chemical oleanane 250 million years ago, the first hard evidence of their existence comes from 130 million years ago. The typical one is a bisporangiate strobilis, also called "perfect" (*), and contains both sexual organs. Producing them is the key characteristic of angiosperms. Some may use mimicry and colors to attract the necessary creatures and some require flies, bats, or birds in order to reproduce. Identify, FTP, this reproductive structure of some plants, containing stamens and pistils.
Despite evidence of the defensive chemical oleanane 250 million years ago, the first hard evidence of their existence comes from 130 million years ago.
{Flowers} (accept word forms and equivalents such as “flowering”)