什么是 The parts of a flower？

A flower is the part of the plant that will make the seeds. From the outside in:

1. the petals, colored and scented, which attract visiting insects;
2. the stamens, thin stalks dusted with pollen, a fine yellow powder;
3. in the very center, the pistil, a little flask; deep inside it lie the flower’s future seeds.

A flower is a short shoot whose leaves are transformed into four whorls. Outside, the sepals (together the calyx) protect the bud; then the petals (the corolla), which advertise; then the stamens, each a filament bearing an anther with four pollen sacs; and at the centre one or more carpels, each folded and sealed into a pistil with a receptive stigma, a style, and an ovary enclosing the ovules. A flower with both stamens and carpels is hermaphrodite (most species); monoecious plants bear separate male and female flowers on one individual (maize, oak, hazel), dioecious species on separate individuals (holly, willow, date palm). The whole point of the closed carpel — the character that names the angiosperms — is that the ovules are enclosed: pollen never reaches them directly, but must grow to them through the plant’s tissue, which lets the plant choose.