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Parts of plants
all the parts of a plant
20
Biology
12th Grade
11/24/2019

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Term
Peduncle
Definition
Main supporting stem of a flower
Term
Receptacle
Definition
tip of the stem, swells into this structure. houses the rest of the flower. The other parts of the flower are attached to this in a whorl.
Term
Sepals
Definition
Usually coming out of the receptacle. Small green leaf-like projections at the base of the flower. Protects the bud during the growing stage. There are about 3-5 of these around the receptacle. "The outer parts of the flower that enclose a developing bud."
Term
Calyx
Definition
Sepals, collectively. Serves to protect the slower during bud phase.
Term
Petals
Definition
Another whorl that forms from the receptacle. Colorful or green in nature. Intention is to attract insects for pollination. Free petals vs. united. Individuals.
Term
Corolla
Definition
Collective idea of petals. All the petals together. United, whole. EX: can be with free petals or united.
Term
Perianth
Definition
Collectively the Calyx and Corolla together as a whole. Sepals/Calyx + Petals/Corolla = Perianth
Term
Bracts
Definition
Random pointless leaves on the stem. Usually extending from the receptacle. sometimes green or colorful. kinda like a petal and leaf combined bc they attract pollinators.
Term
Stamens
Definition
Also emerge from the receptacle, from the base of the pistil.
Term
Pistil
Definition
A (green) structure that rises from the centre of the flower. Comprised of these parts: ovule, style and stigma. Vase shaped.
Term
Anther
Definition
Part of the Stamens. The top of the filament. sac like structure and contains the pollen.
Term
Filament
Definition
Part of the stamens. The stalk-like structure. Atop it sits the anther.
Term
Pollen Grains
Definition
Within the Anthers
Term
Stigma
Definition
Top part of the Pistil.
Term
Style
Definition
Stalk-like. Underneath the Stigma. Part of the Pistil.
Term
Ovary
Definition
Part of the Pistil, the swelling at the base. Ultimately develops into the fruit. Each one contains chambers..
Term
Ovules
Definition
Eggs cells, attached by tiny stalks in the ovary. They develop after a flower has been fertilized and will eventually develop into seeds.
Term
Seeds
Definition
Also gathered for use in herbal medicine. Examples: aromatic fennel, spiky burdock, Horse chesnut tree.
Term
Inflorescence
Definition
The formation of groups of flowers on a peduncle. (vs. a single flower.)
Term
Types of inflorescence
Definition
Spikes, Panicles, Cymes, Catkins, Corymbs, Umbels, and Racemes.
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