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Root Types
plant root types
12
Biology
9th Grade
03/22/2016

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Term
Primary Root
Definition
Root that grows from a radicle.

eg: first root produced
Term
Secondary or Lateral Roots
Definition
roots that grow from the primary root
Term
Taproot System
Definition
where a single root develops from the main root

Eg: carrots, beetroot, oak tree
Term
Fibrous Root System
Definition
where many roots of similar thickness replace the primary root

Eg: corn, grass
Term
Storage Roots
Definition
store food and moisture

eg: carrot and tuberous roots
Term
Tuberous Roots
Definition
storage roots that develop when parts of secondary roots thicken

Eg: sweet potato
Term
Pneumatophores Roots
Definition
breathing roots

eg: mangroves
Term
Adventitious Roots
Definition
roots that dont come from the primary root

eg: aerial, prop roots, hastoria
Term
Aerial Roots
Definition
grow from stems and leaves

eg: Orchid
Term
Prop or Still Roots
Definition
grow down into ground to help the support the plant

Eg: corn, some plams
Term
Buttress Roots
Definition
strong, woody support roots on big trees

Eg: spruce, beech
Term
Haustoria
Definition
Roots from plants that take moisture and food from host plant

eg: Dodder
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