(NEWEST 2026) LOUISIANA HORTICULTURE TEST QUESTIONS AND 100%
VERIFIED ANSWERS
1. Who developed binomial nomenclature?
Linnaeus developed binomial nomenclature.
2. What is binomial nomenclature?
A classification system in which each species is assigned a two-part scientific
name.
3. What is the difference between a variety and a cultivar?
A variety is a naturally occurring subgroup within a species, while a cultivar is a
special group that retains its distinguishing features when propagated.
4. Why is the proper naming of plants important?
It is important for customer protection, legal requirements, and effective
communication between nursery and landscape professionals.
5. What are the common origins of botanical names?
They typically originate from countries of origin, names of plant explorers, or
descriptive Latin terms.
6. What are the eleven horticultural groupings used to classify plants?
7. Herbaceous or woody, 2. Life span, 3. Leaf retention, 4. Growth habit, 5. Stem
structure, 6. Size, 7. Form, 8. Temperature tenderness, 9. Light requirements,
10. Water requirements, and 11. Use.
8. What are the primary functions of the root system?
Anchorage, absorption, conduction, and storage.
9. What are the primary functions of the stem?
Support, conduction, and storage.
, 10.What is the function of the xylem?
It is the tissue through which water and minerals move from the roots to the
leaves.
11.What is the function of the phloem?
It is the tissue through which food moves from the leaves to the rest of the plant.
12.What is the cambium layer?
The layer of tissue located between the xylem and the phloem.
13.What is a girdle in botany?
A circle of dead tissue around a stem.
14.What are nodes?
Areas on stems where leaves emerge.
15.What are internodes?
The spaces on the stem between the nodes.
16.What is an axillary bud?
A compressed, dormant stem located where the leaf joins the stem.
17.What is the axil?
The angle formed between the leaf and the stem.
18.What is the crown of a plant?
The area where the stem and the root meet.
19.What are the different forms of propagation structures?
Bulbs, corms, rhizomes, tubers, and tuberous roots.
20.What are the primary functions of the leaf?
Photosynthesis and transpiration.
21.What is transpiration?
VERIFIED ANSWERS
1. Who developed binomial nomenclature?
Linnaeus developed binomial nomenclature.
2. What is binomial nomenclature?
A classification system in which each species is assigned a two-part scientific
name.
3. What is the difference between a variety and a cultivar?
A variety is a naturally occurring subgroup within a species, while a cultivar is a
special group that retains its distinguishing features when propagated.
4. Why is the proper naming of plants important?
It is important for customer protection, legal requirements, and effective
communication between nursery and landscape professionals.
5. What are the common origins of botanical names?
They typically originate from countries of origin, names of plant explorers, or
descriptive Latin terms.
6. What are the eleven horticultural groupings used to classify plants?
7. Herbaceous or woody, 2. Life span, 3. Leaf retention, 4. Growth habit, 5. Stem
structure, 6. Size, 7. Form, 8. Temperature tenderness, 9. Light requirements,
10. Water requirements, and 11. Use.
8. What are the primary functions of the root system?
Anchorage, absorption, conduction, and storage.
9. What are the primary functions of the stem?
Support, conduction, and storage.
, 10.What is the function of the xylem?
It is the tissue through which water and minerals move from the roots to the
leaves.
11.What is the function of the phloem?
It is the tissue through which food moves from the leaves to the rest of the plant.
12.What is the cambium layer?
The layer of tissue located between the xylem and the phloem.
13.What is a girdle in botany?
A circle of dead tissue around a stem.
14.What are nodes?
Areas on stems where leaves emerge.
15.What are internodes?
The spaces on the stem between the nodes.
16.What is an axillary bud?
A compressed, dormant stem located where the leaf joins the stem.
17.What is the axil?
The angle formed between the leaf and the stem.
18.What is the crown of a plant?
The area where the stem and the root meet.
19.What are the different forms of propagation structures?
Bulbs, corms, rhizomes, tubers, and tuberous roots.
20.What are the primary functions of the leaf?
Photosynthesis and transpiration.
21.What is transpiration?
