1: What is the genus of flowering plants first described in 1806, known for its heavily scented, waxy flowers?
A: Stephanotis
B: Rhododendron
C: Chrysanthemum
D: Dahlia
Correct Answer: A
Explanation: Stephanotis is a genus of flowering plants known for their highly fragrant, waxy flowers.
2: The name Stephanotis is derived from a Greek word meaning what?
A: Crown
B: Flower
C: Aroma
D: Vine
Correct Answer: A
Explanation: The name derives from the Greek word “stephanōtís,” meaning “fit for a crown,” which is a derivative of “stéphanos” meaning crown.
3: Which plant family does Stephanotis belong to?
A: Rosaceae
B: Apocynaceae
C: Fabaceae
D: Asteraceae
Correct Answer: B
Explanation: Stephanotis belongs to the Apocynaceae family.
4: What type of climate is most suitable for the growth of Stephanotis?
A: Cold and dry
B: Tropical and subtropical
C: Desert
D: Wet and temperate
Correct Answer: B
Explanation: Stephanotis has a scattered distribution in tropical and subtropical regions.
5: What are the common names for Stephanotis floribunda?
A: Madagascar jasmine and bridal veil
B: African violet and bridal lace
C: Caribbean lily and wedding wreath
D: Asian orchid and nuptial bloom
Correct Answer: A
Explanation: Stephanotis floribunda, also known as Madagascar jasmine and bridal veil, is well-known for its ornamental use in wedding bouquets.
6: How tall can the stems of Stephanotis grow?
A: 3 feet
B: 5 feet
C: 8 feet
D: 10 feet or more
Correct Answer: D
Explanation: The stems of Stephanotis can reach 10 feet or more in length.
7: When do the heavily scented waxy flowers of Stephanotis typically appear?
A: Spring
B: Summer
C: Fall
D: Winter
Correct Answer: B
Explanation: The heavily scented waxy flowers of Stephanotis appear in the summer.
8: What type of leaves does Stephanotis have?
A: Deciduous and soft
B: Opposite, ovate to elliptic, and leathery
C: Pinnate and feathery
D: Needle-like and stiff
Correct Answer: B
Explanation: Stephanotis has opposite, ovate to elliptic, and leathery leaves.
9: What is another botanical name that was once a synonym for Stephanotis?
A: Chlorochlamys
B: Campanula
C: Lobelia
D: Salvia
Correct Answer: A
Explanation: Chlorochlamys was once a synonym for Stephanotis.
10: Which of the following is a true statement about Stephanotis care requirements?
A: It thrives in fluctuating temperatures.
B: It prefers constant cool conditions in winter.
C: It does not need much light.
D: It is resistant to pests.
Correct Answer: B
Explanation: Stephanotis prefers constant cool conditions in winter and is sensitive to temperature changes.
11: Stephanotis is known to be attractive to which type of pests?
A: Aphids and spider mites
B: Scale and mealy bug
C: Thrips and whiteflies
D: Caterpillars and beetles
Correct Answer: B
Explanation: Stephanotis is particularly attractive to scale and mealy bugs.
12: For what special occasion is Stephanotis particularly popular?
A: Halloween decorations
B: Christmas wreaths
C: Wedding bouquets
D: Birthday flower arrangements
Correct Answer: C
Explanation: Stephanotis flowers are popular elements in wedding bouquets due to their beauty and fragrance.
13: In what year was the genus Stephanotis first described?
A: 1706
B: 1806
C: 1906
D: 2006
Correct Answer: B
Explanation: The genus Stephanotis was first described in 1806.
14: Stephanotis belongs to which plant order?
A: Solanales
B: Asparagales
C: Gentianales
D: Lamiales
Correct Answer: C
Explanation: Stephanotis belongs to the Gentianales order.
15: The most recognized species of Stephanotis is?
A: Stephanotis japonica
B: Stephanotis floribunda
C: Stephanotis grande
D: Stephanotis liliflora
Correct Answer: B
Explanation: The most recognized species of Stephanotis is Stephanotis floribunda (Madagascar jasmine).
16: Which subfamily does Stephanotis belong to?
A: Asclepiadoideae
B: Papilionoideae
C: Ranunculoideae
D: Maloideae
Correct Answer: A
Explanation: Stephanotis belongs to the Asclepiadoideae subfamily.
17: What characteristic makes Stephanotis challenging to grow?
A: Likes very dry soil
B: Needs a lot of sunlight
C: Hates sudden changes in temperature
D: Requires constant pruning
Correct Answer: C
Explanation: Stephanotis hates sudden changes in temperature, making it challenging to grow.
18: The flowers of Stephanotis are generally which color?
A: Blue
B: Red
C: White
D: Yellow
Correct Answer: C
Explanation: Stephanotis flowers are usually white and are known for their waxy texture.
19: Stephanotis floribunda is commonly cultivated as what type of plant?
A: Groundcover
B: Indoor pot plant
C: Tropical or hothouse ornamental
D: Edible garden plant
Correct Answer: C
Explanation: Stephanotis floribunda is cultivated as a tropical or hothouse ornamental.
20: What alternative name is Stephanotis known by in the context of weddings?
A: Wedding wreath
B: Bridal veil
C: Nuptial moss
D: Matrimony fern
Correct Answer: B
Explanation: Stephanotis is also known as “bridal veil” due to its frequent use in wedding decor.
21: Which type of habitat does Stephanotis typically not flourish in?
A: Desert
B: Tropical forest
C: Subtropical garden
D: Hothouse environment
Correct Answer: A
Explanation: Stephanotis typically does not flourish in desert habitats.
22: Stephanotis plants are evergreen and have what kind of stems?
A: Herbaceous and soft
B: Woody-stemmed
C: Bulbous and thick
D: Hollow and flexible
Correct Answer: B
Explanation: Stephanotis plants are evergreen and have woody-stemmed lianas.
23: Where is the best environment to cultivate Stephanotis during winter?
A: Outside in the garden
B: In a dry room
C: In constant cool conditions
D: Near a heating vent
Correct Answer: C
Explanation: Stephanotis should be cultivated in constant cool conditions during winter.
24: What precaution should be taken when moving Stephanotis plants?
A: Water them heavily
B: Avoid exposure to bright light
C: Prevent sudden temperature changes
D: Prune extensively before moving
Correct Answer: C
Explanation: Stephanotis plants should be protected from sudden temperature changes when moved.
25: What is a key feature of Stephanotis flowers that adds to their appeal in weddings?
A: Their bright colors
B: Their large size
C: Their strong fragrance
D: Their edible petals
Correct Answer: C
Explanation: The strong fragrance of Stephanotis flowers adds to their appeal in weddings.
26: The leaves of Stephanotis are typically what shape?
A: Triangular
B: Round
C: Ovate to elliptic
D: Serrated
Correct Answer: C
Explanation: Stephanotis leaves are typically ovate to elliptic in shape.
27: When growing Stephanotis, what is a common practice for its stems?
A: Let them grow freely
B: Train them to climb
C: Cut them back frequently
D: Submerge them in water
Correct Answer: B
Explanation: The stems of Stephanotis are often trained to climb or twined around a wire hoop.
28: Which clade does Stephanotis belong to within the Plantae kingdom?
A: Bryophytes
B: Angiosperms
C: Gymnosperms
D: Pteridophytes
Correct Answer: B
Explanation: Stephanotis belongs to the Angiosperms clade.
29: Stephanotis is especially sensitive to what kind of environmental factor?
A: Light intensity
B: Nutrient levels
C: Temperature fluctuations
D: Wind speed
Correct Answer: C
Explanation: Stephanotis is especially sensitive to temperature fluctuations.
30: Which part of Stephanotis is typically used in wedding arrangements?
A: Leaves
B: Roots
C: Flowers
D: Stems
Correct Answer: C
Explanation: The flowers of Stephanotis are commonly used in wedding arrangements.
31: What color are the flowers of Stephanotis typically NOT?
A: White
B: Blue
C: Creamy white
D: Pale white
Correct Answer: B
Explanation: Stephanotis flowers are typically white and not blue.
32: Which of the following is a synonym for Stephanotis?
A: Camellia
B: Chlorochlamys
C: Azalea
D: Begonia
Correct Answer: B
Explanation: Chlorochlamys is a synonym for Stephanotis.
33: What kind of maintenance do Stephanotis plants require in terms of temperature?
A: No specific requirements
B: Constant cool conditions
C: High temperatures
D: Varied temperatures
Correct Answer: B
Explanation: Stephanotis requires constant cool conditions for proper growth.
34: What are the flowers of Stephanotis known for?
A: Brightly colored petals
B: Strong perfume
C: Fruity aroma
D: Thorny texture
Correct Answer: B
Explanation: The flowers of Stephanotis are known for their strong perfume.
35: Which tribe does the genus Stephanotis belong to?
A: Phaseoleae
B: Marsdenieae
C: Lactuceae
D: Heliantheae
Correct Answer: B
Explanation: Stephanotis belongs to the Marsdenieae tribe.
36: What is the general growth form of Stephanotis plants?
A: Ground-hugging
B: Shrub-like
C: Climbing lianas
D: Tree-like
Correct Answer: C
Explanation: Stephanotis plants generally grow as climbing lianas.
37: What historical figure is attached to the naming of Stephanotis?
A: Linnaeus
B: Thouars
C: Humboldt
D: Darwin
Correct Answer: B
Explanation: The genus Stephanotis was named by Thouars in 1806.
38: One of the past synonyms for Stephanotis is “Wattakaka.” What does this indicate?
A: Importance in trade
B: Changes in botanical classification over time
C: Similar plant in a different region
D: Its use in traditional medicine
Correct Answer: B
Explanation: The synonym “Wattakaka” indicates changes in botanical classification over time.
39: Which term accurately describes Stephanotis leaves?
A: Spiky and thin
B: Hairy and soft
C: Leathery and durable
D: Feather-like and light
Correct Answer: C
Explanation: Stephanotis leaves are leathery and durable.
40: What care aspect is crucial to avoid for Stephanotis plants?
A: Overwatering
B: Sudden temperature changes
C: Too much light
D: Excessive pruning
Correct Answer: B
Explanation: Avoiding sudden temperature changes is crucial for Stephanotis plants.
41: The type species for the genus Stephanotis is?
A: Stephanotis japonica
B: Stephanotis thouarsii
C: Stephanotis grandiflora
D: Stephanotis floribunda
Correct Answer: B
Explanation: The type species for the genus Stephanotis is Stephanotis thouarsii.
42: What does the term “lianas” refer to in the context of Stephanotis?
A: Types of flowers
B: Type of leaves
C: Woody vines
D: Root system
Correct Answer: C
Explanation: Lianas refer to the woody vines characteristic of Stephanotis plants.
43: Which geographical areas are suitable for planting Stephanotis?
A: Arid deserts
B: Rainless tundras
C: Tropical and subtropical regions
D: Cold and frosty areas
Correct Answer: C
Explanation: Tropical and subtropical regions are suitable for planting Stephanotis.
44: Stephanotis is best known for what kind of flowers?
A: Fragrant, waxy, tubular
B: Large, colorful, spiky
C: Small, dull, fuzzy
D: Dark, thorny, rigid
Correct Answer: A
Explanation: Stephanotis is best known for its fragrant, waxy, tubular flowers.
45: Which genus does Stephanotis floribunda belong to?
A: Stephanotis
B: Camellia
C: Lilium
D: Rhododendron
Correct Answer: A
Explanation: Stephanotis floribunda belongs to the Stephanotis genus.
46: How is Stephanotis typically sold in garden centers?
A: As cut flowers
B: Twined around a wire hoop
C: Planted directly in the garden
D: As seeds only
Correct Answer: B
Explanation: Stephanotis is usually sold twined around a wire hoop.
47: Which organ of Stephanotis is mainly leather, opposite and ovate to elliptic in shape?
A: Stems
B: Leaves
C: Roots
D: Flowers
Correct Answer: B
Explanation: The leaves of Stephanotis are leathery, opposite and ovate to elliptic in shape.
48: What is a significant challenge when growing Stephanotis indoors?
A: High light requirement
B: Susceptibility to pests like scale and mealy bugs
C: Inadequate space
D: Lack of proper tools
Correct Answer: B
Explanation: Indoor Stephanotis is susceptible to pests like scale and mealy bugs, which is a significant challenge.
49: What growth characteristic is common to all Stephanotis species?
A: Rapid spreading
B: Evergreen
C: High water consumption
D: Deciduous
Correct Answer: B
Explanation: All Stephanotis species are evergreen.
50: Which aspect of Stephanotis flowers makes them especially valued in horticulture?
A: Long blooming period
B: Fragrance
C: Edible flowers
D: Color variation
Correct Answer: B
Explanation: The strong fragrance of Stephanotis flowers makes them especially valued in horticulture.
51: The genus Stephanotis is part of which tribe within the Apocynaceae family?
A: Marsdenieae
B: Oleeae
C: Lycopodieae
D: Melastomeae
Correct Answer: A
Explanation: Stephanotis is part of the Marsdenieae tribe within the Apocynaceae family.
52: Which type of flower arrangement is particularly enhanced by Stephanotis?
A: Rustic country bouquets
B: Wedding bouquets
C: Holiday wreaths
D: Beach-themed arrangements
Correct Answer: B
Explanation: Stephanotis flowers are popular in wedding bouquets due to their beauty and scent.
53: How is Stephanotis affected by sudden changes in its environment?
A: It becomes more fragrant
B: It thrives and grows rapidly
C: It suffers and may deteriorate
D: It becomes more drought-resistant
Correct Answer: C
Explanation: Stephanotis suffers and may deteriorate with sudden changes in its environment.
54: What is the common aesthetic appeal of Stephanotis flowers?
A: Colorful patterns
B: Uniform shapes
C: Intricate designs
D: Waxy, tubular structure
Correct Answer: D
Explanation: Stephanotis flowers have a common aesthetic appeal due to their waxy, tubular structure.
55: Stephanotis plants are evergreen. What does “evergreen” mean?
A: Loses leaves seasonally
B: Retains leaves throughout the year
C: Changes leaf color with seasons
D: Grows only in winter
Correct Answer: B
Explanation: Evergreen means that the plant retains its leaves throughout the year.
56: What is an essential step in cultivating Stephanotis for beginners?
A: Regular pruning
B: Monitoring soil pH
C: Avoiding sudden temperature changes
D: High nitrogen fertilization
Correct Answer: C
Explanation: Avoiding sudden temperature changes is essential in cultivating Stephanotis.
57: What is a common characteristic of Stephanotis leaves?
A: Hairy and soft
B: Leathery and durable
C: Thin and transparent
D: Prickly and sharp
Correct Answer: B
Explanation: Stephanotis leaves are leathery and durable.
58: In botanical terms, what does the “lianas” form of growth refer to?
A: Shrubs
B: Trees
C: Climbing woody vines
D: Ground covers
Correct Answer: C
Explanation: “Lianas” refers to climbing woody vines, which is the growth form of Stephanotis.
59: What type of environment is best for growing Stephanotis as an ornamental plant?
A: Arid and dry
B: Wet and cool
C: Tropical or hothouse
D: Windy and sandy
Correct Answer: C
Explanation: The best environment for growing Stephanotis as an ornamental plant is a tropical or hothouse setting.
60: Stephanotis is in which clade of flowering plants?
A: Gymnosperms
B: Eudicots
C: Monocots
D: Conifers
Correct Answer: B
Explanation: Stephanotis belongs to the Eudicots clade of flowering plants.