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Flower Characteristics AGR 161
Objectives The students will be able to: Label the parts of the flower. Identify each parts function. Recognize the different inflorescence types.
Flowers Flowers are produced primarily for their commercial purposes Flowers come in various shapes, sizes and colors Flowers are used for reproduction
Parts of the Flower
Sepals Green leaf-like structures beneath the petals. Calyx is made up of all the sepals on one flower
Petals Usually brightly colored Primarily used to attract pollinators Collectively petals are referred to as calyx
Stamens The male reproductive part of the flower is the stamens 2 parts Anther and Filament
Pistils The female reproductive parts of the flower 3 parts Stigma, Style, and Ovary Ovary contains ovules or eggs
Inflorescence Inflorescence is the arrangement of flowers on a stem. Some flowers are clustered at the tip of the stem, while other are likes spikes
Types of Inflorescence Cyme Spike Raceme Panicle Corymb Umbel Spadix Catkin Head
Cyme Usually a flat topped inflorescence Babys Breath
Spike An elongated inflorescence with a central axis. Flowers are attached to the inflorescence without a stem or stalk Liatris
Raceme Elongated inflorescence with central axis. Pedicels are more or less of equal length Snapdragon
Panicle Elongated inflorescence Along the central axis there are branches that are themselves branched Astilbe
Corymb Flat topped inflorescence Mainly a vertical axis with branches of unequal length Yarrow
Umbel Inflorescence having several branches arising from a common point Queen Annes Lace
Spandix Spike with a thickened, fleshy axis Anthurium
Catkin Catkin is a spike, raceme, or cyme Composed of unisexual flowers without petals Falling as a unit Willow Tree
Head Rounded or flat- topped cluster of sessile flowers Type of Chrysanthemum
Spadix Calla Lily
Catkin Willow Tree
Cyme Babys Breath
Umbel Queen Annes Lace
Head Spider Mum
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