Flowers {flower}| are modified stems. Flowers have receptacle, calyx, sepals, petals, stamen, and pistil.
flower types
Flowers can have stamen, pistils, petals, and sepals {complete flower} or lack something {incomplete flower}.
stamen and pistil types
Flowers can have functional stamen and pistil {perfect flower}, functioning pistil only {pistillate flower}, or functional stamen only {stamenate flower}.
imperfect flowers
Date palm, willow, and poplar have imperfect flowers. Plants can have separate staminate and pistillate plants {dioecious plant}, as in holly trees and pistachio trees. Plants {monoecious plant} can have separate male and female flowers on same plant, as in corn and pecan trees. Plants can have only male flowers at growing-season beginning but later have male and female flowers, as in cucumbers and squash.
temperature
Some flowers have cone-shaped top-surface cells that focus sunlight onto lower-cell petal pigments, making flowers warmer.
Biological Sciences>Botany>Plant>Vascular>Angiosperm>Flower
4-Botany-Plant-Vascular-Angiosperm-Flower
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0224