Louisiana Horticulture License Exam 2025/2026 | Complete Study Guide with Verified Questions & Answers

Louisiana Horticulture License Exam

What3is3the3difference3between3a3cultivar3and3variety?3-3correct3answer✔ ✔ variety3-
naturally3occurring3subgroup3within3species.
3

cultivar3-3special3group3that3retain3their3distinguishing3features3when3propogated.


Who3is3Linnaeus?3What3system3of3naming3plants3did3he3create?3-3correct3answer✔
✔ -developed3binomial3nomenclature.
-Classification3system3in3which3each3species3is3assigned3a3two-part3scientific3name.


Why3is3it3important3to3know3common3and3scientific3names3of3plants?3-3correct3answer
✔ ✔ -
customer3protection,3legal3requirements,3communication3between3nursery3and3landsca
pe3pros


What3are3some3origins3of3botanical3names?3-3correct3answer✔ ✔
1.3Countries3of3origin
2.3Names3of3plant3explorers
3.3Descriptive3latin3terms


What3are3some3typical3groupings3for3plants3when3they3are3classified3by3growth3charact
eristics?3-3correct3answer✔ ✔ 1.3Herbaceous3or3woody
2.3Life3span
3.3Leaf3retention
4.3Growth3habit
5.3Stem3structure
6.3Size
7.3Form
8.3Temp3tender

,9.3Light
10.3Water
11.3Use


List3the3functions3of3a3root3system3-3correct3answer✔ ✔
anchorage,3absorption,3conduction,3storage


What3are323kinds3of3root3systems3-3correct3answer✔ ✔ Taproots3and3fibrous3roots


List3the3functions3of3the3stem3of3the3plant3-3correct3answer✔ ✔
support,3conduction,3storage


Define3xylem3and3phloem3-3correct3answer✔ ✔ xylem-
water3and3minerals3move3from3roots3to3leaves.
phloem-food3from3leaves3moves3to3the3plant


What3is3the3difference3between3monocots3and3dicots?3-3correct3answer✔ ✔
Number3of3cotyledons
mono-31
dicots-2


What3are3nodes3and3internodes3-3correct3answer✔ ✔ nodes-
areas3on3stems3where3leaves3emerge.
3

internodes-space3between3nodes


List3the3types3of3specialized3stems3and3roots3commonly3found3in3plants3-
correct3answer✔ ✔ bulbs,3corms,3rhizomes,3tubers,3tuberous3roots
3




What3are3the323main3functions3of3leaves3-3correct3answer✔ ✔
photosynthesis3and3transpiration

, Transpiration-3evaporation3of3water3from3the3leaves3of3a3plant


Define3angiosperms3and3gymnosperms3-3correct3answer✔ ✔ Angiosperms-
plants3that3bloom3and3develop3fruit3which3encloses3the3seed
3




Gymnosperms-3plants3that3have3no3true3flowers3or3fruit,3but3make3seeds3in3cones


List3the3parts3of3a3complete3flower3-3correct3answer✔ ✔ -Stamen(Anther3&3Filament)
-Pistil(Stilma;3Style;3Ovary)
-Petal3
-Sepal
-Locule3
3

-Ovule3
3

-Placenta3
3

-Receptacle
3

-Peduncle
3




List3the3priority3in3which3plant3parts3receive3food3manufactured3by3the3leaves3-
correct3answer✔ ✔ 1.3Flower
3


2.3Seeds
3.3Leaves
4.3Stems
5.3Roots


List3the333primary3elements3for3essential3plant3growth3-3correct3answer✔ ✔
1.3carbon
2.3hydrogen
3.3oxygen