Hawaii Landscape Architect Plant Materials State Exam 200 Practice Questions with Verified Answers & Detailed Rationales

Hawaii Landscape Architect Plant Materials
State Exam 2026-2027
200 Practice Questions with Verified Answers
& Detailed Rationales

SECTION 1: PLANT CLASSIFICATION & TERMINOLOGY (Questions 1-
25)
Question 1
Which term best describes plants that originated and evolved naturally in Hawaii
and are found nowhere else on Earth?
A) Indigenous
B) Endemic
C) Polynesian Introduction
D) Naturalized
Answer: B
Rationale: Endemic species are native to a specific geographic area and found
naturally only there. In Hawaii, endemic species evolved uniquely due to
geographic isolation and are found nowhere else on Earth. Examples include ʻōhiʻa
lehua, koa, and loulu palms. Indigenous species (A) occur in Hawaii and elsewhere
naturally. Polynesian Introductions (C) were brought by humans. Naturalized
species (D) are non-native plants that reproduce on their own but did not originate
in Hawaii.


Question 2
A naturally occurring plant species that is native to Hawaii but can also be found in
other parts of the Pacific is best described as:

,A) Endemic
B) Indigenous
C) Exotic
D) Cultivar
Answer: B
Rationale: Indigenous species (e.g., naupaka kahakai, hala) evolved elsewhere and
arrived in Hawaii naturally (by wind, waves, or birds) without human assistance.
They are native to Hawaii but also occur in other Pacific islands and regions.
Endemic species evolved uniquely in Hawaii and are found nowhere else. Exotic
refers to non-native species. Cultivar refers to a cultivated variety.


Question 3
Which of the following is an endemic Hawaiian plant found only in Hawaiʻi?
A) Kukui (Aleurites moluccanus)
B) ʻŌhiʻa lehua (Metrosideros polymorpha)
C) Noni (Morinda citrifolia)
D) Ti (Cordyline fruticosa)
Answer: B
Rationale: ʻŌhiʻa lehua is endemic to Hawaiʻi, meaning it is found naturally
nowhere else in the world. Kukui, noni, and ti are Polynesian introductions (canoe
plants) brought by early Hawaiian settlers.


Question 4
Which of the following is an indigenous Hawaiian plant (found both in Hawaiʻi
and elsewhere naturally)?
A) Hala (Pandanus tectorius)
B) ʻĀkia (Wikstroemia uva-ursi)
C) Maʻo (Hibiscus brackenridgei)
D) ʻIlima (Sida fallax)
Answer: A

,Rationale: Hala is indigenous to Hawaiʻi, meaning it arrived naturally without
human help and is also found in other Pacific regions. ʻĀkia and ʻilima are
indigenous as well, but hala is the classic example. Maʻo is endemic.


Question 5
What does "Naturalized" mean in the context of Hawaiian landscaping?
A) A plant native to the specific site
B) A non-native plant that reproduces and sustains itself without human cultivation
C) A plant that has been genetically modified
D) A plant that requires daily irrigation to survive
Answer: B
Rationale: Many introduced species, such as plumeria and ginger, have "gone
native"—they thrive and reproduce on their own without human intervention, but
they did not originate in Hawaii. Naturalized species are not considered native
despite their ability to persist independently.


Question 6
Which term refers to plants brought to Hawaii by early Polynesian voyagers?
A) Endemic species
B) Indigenous species
C) Canoe plants
D) Invasive species
Answer: C
Rationale: Polynesian introductions, also known as "canoe plants," were brought
by early Polynesian voyagers and include kukui, kalo, ʻulu, noni, maiʻa, kī, and
ʻawa. These plants were essential for survival and cultural practices.


Question 7
The study of plant classification and identification is called:

, A) Ecology
B) Taxonomy
C) Horticulture
D) Botany
Answer: B k0




Rationale: Taxonomy is the science of naming, describing, and classifying
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organisms, including plants. Botany is the broader study of plants; horticulture is
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the cultivation of plants; ecology is the study of organisms and their environment.
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Question 8 k0




Which of the following is NOT a Hawaiian "canoe plant" (Polynesian
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introduction)?
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A) Kalo (taro) k0




B) ʻUlu (breadfruit)k0




C) ʻŌhiʻa lehua k0




D) Kukui
Answer: C k0




Rationale: ʻŌhiʻa lehua is endemic to Hawaii, not a Polynesian introduction. Kalo,
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ʻulu, and kukui were all brought by early Polynesians.
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Question 9 k0




Which plant type completes its life cycle in one growing season?
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A) Annual
B) Biennial
C) Perennial
D) Shrub
Answer: A k0




Rationale: Annual plants germinate, grow, flower, and die within one season.
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Biennials complete their cycle in two years; perennials live for multiple years.
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