LOUISIANA LANDSCAPE HORTICULTURE STATE
EXAMINATION TEST PRACTICE QUESTIONS
AND SOLVED ANSWERS 2026
◉ What is the system of binomial nomenclature? Answer: gives plants a
genus and specie name in Latin.
◉ what is the difference between a cultivar and a variety? Answer: A
cultivar designates a certain group of individuals that retain their
distinguishing characteristics. A variety is a subgroup that occurs
naturally and looks different from other members of that species.
◉ Why is it important to know common and scientific names of plants?
Answer: Costumer protection
legal requirements
communication between nurseries and landscape professionals.
◉ What are some origins of botanical names? Answer: country of origin
names of explorers
descriptive Latin terms
◉ List the functions of a root system. Answer: support
,storage
anchorage
conduction
◉ List the functions of the stem of a plant. Answer: storage
conduction
support
◉ Xylem Answer: inner tissue of the stem that moves water and mineral
solutions from the roots to the leaves.
◉ Phloem Answer: outer tissue of the stem that moves water and
manufactured food from the leaves.
◉ Cambium layer Answer: Tissue between the xylem and phloem.
◉ girdle Answer: circle of dead tissue around the stem.
◉ nodes Answer: The places on the stem where leaves or buds emerge
◉ internodes Answer: the places on the stem between the nodes.
,◉ axillary bud Answer: compressed dormant stem or where leaves join
the stem.
◉ axil Answer: angle of a leaf
◉ crown Answer: where stem and root meet
◉ Name types of specialized stems and roots in plants Answer: bulbs
corms
rhizomes
tubers
tuberous roots
sprigs or stolons
cone
◉ 2 main functions of leaves Answer: photosynthesis and transpiration
◉ Transpiration Answer: evaporation of water from the leaves
◉ Angiosperm Answer: plants that bloom and develop fruit which
encloses a seed.
, ◉ gymnosperm Answer: plants that do not bloom but rather produce a
seed that is unenclosed.
◉ List the priority in which plant parts recieve food manufactured by the
leaves Answer: Flower
seed
leaves
stem
roots
◉ List 3 primary elements essential for plant growth. Answer: Carbon
oxygen
hydrogen
◉ macronutrients Answer: nitrogen
phosphorus
potassium
calcium
magnesium
sulfur
◉ micronutrients Answer: iron
EXAMINATION TEST PRACTICE QUESTIONS
AND SOLVED ANSWERS 2026
◉ What is the system of binomial nomenclature? Answer: gives plants a
genus and specie name in Latin.
◉ what is the difference between a cultivar and a variety? Answer: A
cultivar designates a certain group of individuals that retain their
distinguishing characteristics. A variety is a subgroup that occurs
naturally and looks different from other members of that species.
◉ Why is it important to know common and scientific names of plants?
Answer: Costumer protection
legal requirements
communication between nurseries and landscape professionals.
◉ What are some origins of botanical names? Answer: country of origin
names of explorers
descriptive Latin terms
◉ List the functions of a root system. Answer: support
,storage
anchorage
conduction
◉ List the functions of the stem of a plant. Answer: storage
conduction
support
◉ Xylem Answer: inner tissue of the stem that moves water and mineral
solutions from the roots to the leaves.
◉ Phloem Answer: outer tissue of the stem that moves water and
manufactured food from the leaves.
◉ Cambium layer Answer: Tissue between the xylem and phloem.
◉ girdle Answer: circle of dead tissue around the stem.
◉ nodes Answer: The places on the stem where leaves or buds emerge
◉ internodes Answer: the places on the stem between the nodes.
,◉ axillary bud Answer: compressed dormant stem or where leaves join
the stem.
◉ axil Answer: angle of a leaf
◉ crown Answer: where stem and root meet
◉ Name types of specialized stems and roots in plants Answer: bulbs
corms
rhizomes
tubers
tuberous roots
sprigs or stolons
cone
◉ 2 main functions of leaves Answer: photosynthesis and transpiration
◉ Transpiration Answer: evaporation of water from the leaves
◉ Angiosperm Answer: plants that bloom and develop fruit which
encloses a seed.
, ◉ gymnosperm Answer: plants that do not bloom but rather produce a
seed that is unenclosed.
◉ List the priority in which plant parts recieve food manufactured by the
leaves Answer: Flower
seed
leaves
stem
roots
◉ List 3 primary elements essential for plant growth. Answer: Carbon
oxygen
hydrogen
◉ macronutrients Answer: nitrogen
phosphorus
potassium
calcium
magnesium
sulfur
◉ micronutrients Answer: iron
