Louisiana Horticulture Test Study
Guide 2025 Questions and Answers
What is the difference between a cultivar and variety? - Correct Answer✔️✔️-Cultivar- A plant or
grouping of plants selected for desirable characteristics that can be maintained by propagation
Variety- A naturally occurring subgroup of a species which has some distinguishing characters
Who is Linnaeus? What system of naming plants did he create? - Correct Answer✔️✔️-Linnaeus is
a Swedish Botanist who developed the Binomial System of Nomenclature(Genus + Species)
Why is it important to know common and scientific names of plants? - Correct Answer✔️✔️-So
that you can communicate with others without confusion about the identity of a plant
What are some origins of botanical names? - Correct Answer✔️✔️-Country of origin, Names of
Explorers, and Descriptive Latin Terms
What are some typical groupings for plants when they are classified by growth characteristics? -
Correct Answer✔️✔️-Life Span, Leaf Retention, Growth Habits, Light, Size
List the functions of a root system. - Correct Answer✔️✔️-Absorption, Anchorage, Conduction,
Storage
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
, What are two kinds of root systems? - Correct Answer✔️✔️-Fibrous and Taproot
List the functions of the stem of a plant. - Correct Answer✔️✔️-Support; Conduction; Storage
Define xylem and phloem. - Correct Answer✔️✔️-xylem- the transport vessel for water and
minerals from root to leaf
phloem- the transport vessel for manufactured food from leaf to stem
What is the difference between monocots and dicots? - Correct Answer✔️✔️-monocots- plants
that have a single seed leaf(corn; grass; lilly)
dicots- plants that have two seed leaves(trees; shrubs; annuals)
What are nodes and internodes? - Correct Answer✔️✔️-nodes- the area on stems where leaves
emerge
internodes- the area on stems in between where leaves emerge
List the types of specialized stems and roots commonly found in plants. - Correct Answer✔️✔️-
Bulbs; Corms; Rhizomes; Tubers; Tuberous Roots
What are the two main functions of leaves? - Correct Answer✔️✔️-Photosynthesis and
Transpiration
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
Guide 2025 Questions and Answers
What is the difference between a cultivar and variety? - Correct Answer✔️✔️-Cultivar- A plant or
grouping of plants selected for desirable characteristics that can be maintained by propagation
Variety- A naturally occurring subgroup of a species which has some distinguishing characters
Who is Linnaeus? What system of naming plants did he create? - Correct Answer✔️✔️-Linnaeus is
a Swedish Botanist who developed the Binomial System of Nomenclature(Genus + Species)
Why is it important to know common and scientific names of plants? - Correct Answer✔️✔️-So
that you can communicate with others without confusion about the identity of a plant
What are some origins of botanical names? - Correct Answer✔️✔️-Country of origin, Names of
Explorers, and Descriptive Latin Terms
What are some typical groupings for plants when they are classified by growth characteristics? -
Correct Answer✔️✔️-Life Span, Leaf Retention, Growth Habits, Light, Size
List the functions of a root system. - Correct Answer✔️✔️-Absorption, Anchorage, Conduction,
Storage
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
, What are two kinds of root systems? - Correct Answer✔️✔️-Fibrous and Taproot
List the functions of the stem of a plant. - Correct Answer✔️✔️-Support; Conduction; Storage
Define xylem and phloem. - Correct Answer✔️✔️-xylem- the transport vessel for water and
minerals from root to leaf
phloem- the transport vessel for manufactured food from leaf to stem
What is the difference between monocots and dicots? - Correct Answer✔️✔️-monocots- plants
that have a single seed leaf(corn; grass; lilly)
dicots- plants that have two seed leaves(trees; shrubs; annuals)
What are nodes and internodes? - Correct Answer✔️✔️-nodes- the area on stems where leaves
emerge
internodes- the area on stems in between where leaves emerge
List the types of specialized stems and roots commonly found in plants. - Correct Answer✔️✔️-
Bulbs; Corms; Rhizomes; Tubers; Tuberous Roots
What are the two main functions of leaves? - Correct Answer✔️✔️-Photosynthesis and
Transpiration
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
