Peace Lily Trivia Questions and Answers

white petaled flower with green leaves
  1. Which type of plant does the Peace lily belong to?
    A: Shrub
    B: Fern
    C: Herbaceous evergreen
    D: Tree
    Correct Answer: C
    Explanation: Peace lily is a genus of herbaceous evergreen plants with dark green foliage.
  2. What family do Peace lilies belong to?
    A: Rosaceae
    B: Araceae
    C: Liliaceae
    D: Asteraceae
    Correct Answer: B
    Explanation: Peace lilies are part of the Araceae family.
  3. How many species of Peace lily are there approximately?
    A: 20
    B: 47
    C: 75
    D: 100
    Correct Answer: B
    Explanation: There are about 47 species of Peace lily in the family Araceae.
  4. Where are Peace lilies natively found?
    A: Europe and Africa
    B: Tropical regions of the Americas and southeastern Asia
    C: Australia and New Zealand
    D: Arctic and Antarctic regions
    Correct Answer: B
    Explanation: Peace lilies are native to tropical regions of the Americas and southeastern Asia.
  5. What is a unique feature of Peace lily flowers?
    A: They bloom only once a year
    B: They do not require light to bloom
    C: They can produce flowers in various colors including white, yellowish, or greenish
    D: They always face north
    Correct Answer: C
    Explanation: The flowers of Peace lilies can be white, yellowish, or greenish.
  6. What is the approximate length range of Peace lily leaves?
    A: 2-10 cm
    B: 5-15 cm
    C: 12-65 cm
    D: 70-150 cm
    Correct Answer: C
    Explanation: Peace lily leaves can range from 12 to 65 cm long.
  7. What structure surrounds the Peace lily flower?
    A: A bract
    B: A petal
    C: A spathe
    D: A stem
    Correct Answer: C
    Explanation: The flower structure of a Peace lily is surrounded by a spathe.
  8. What is the spadix in the context of Peace lilies?
    A: A type of leaf
    B: A fruit
    C: A flower structure containing male and female parts
    D: A root system
    Correct Answer: C
    Explanation: The spadix is a short fleshy structure containing the male and female flower parts.
  9. How tall can Peace lily plants grow?
    A: 0.3 to 1.83 meters (1 to 6 feet)
    B: 2 to 5 meters
    C: 10 to 20 centimeters
    D: None of the above
    Correct Answer: A
    Explanation: Peace lily plants can reach a height of 0.3 to 1.83 meters, or 1 to 6 feet.
  10. What kind of habitat do Peace lilies prefer?
    A: Sunny, dry plains
    B: Rainy mountains
    C: Shady, moist, or wet areas along rivers and streams
    D: Coastal sand dunes
    Correct Answer: C
    Explanation: Peace lilies grow in shady, moist, or wet areas along rivers and streams in tropical humid forests.
  11. Where are some Peace lily species specifically found?
    A: Greenland
    B: Urban areas worldwide
    C: Cocos Island and the Philippines
    D: Saharan desert
    Correct Answer: C
    Explanation: Some Peace lily species are found on Cocos Island and in the Philippines.
  12. What type of environments can Peace lilies withstand when planted outdoors?
    A: Cold and dry
    B: Hot and humid
    C: Very arid
    D: Freezing temperatures
    Correct Answer: B
    Explanation: Peace lilies are able to thrive in hot and humid outdoor conditions.
  13. How often do all flowers on a given spadix mature and produce pollen?
    A: Once a year
    B: Twice a month
    C: Every day
    D: All at the same time, for up to four days
    Correct Answer: D
    Explanation: All Peace lily flowers on a given spadix mature at the same time and produce pollen for up to four days.
  14. What kind of fruits do pollinated Peace lily flowers produce?
    A: Berries
    B: Peapods
    C: Ovoid fruits
    D: Nuts
    Correct Answer: C
    Explanation: Pollinated Peace lily flowers produce ovoid fruits.
  15. How long does it take for Peace lily fruits to mature?
    A: 1-2 months
    B: 3-4 weeks
    C: 6-8 days
    D: 4-6 months
    Correct Answer: D
    Explanation: Peace lily fruits take about 4 to 6 months to mature.
  16. What is the scientific name for the Peace lily tribe?
    A: Hominidae
    B: Orchidaceae
    C: Spathiphylleae
    D: Fabaceae
    Correct Answer: C
    Explanation: The Peace lily tribe is scientifically named Spathiphylleae.
  17. What is the scientific name of a Peace lily cultivar that won the Royal Horticultural Society’s Award of Garden Merit?
    A: Peace lily ‘Clevelandii’
    B: Peace lily ‘Mauna Loa’
    C: Peace lily ‘Blandum’
    D: Peace lily ‘Kalbreyeri’
    Correct Answer: B
    Explanation: The cultivar ‘Mauna Loa’ has won the Royal Horticultural Society’s Award of Garden Merit.
  18. What substance is used commercially to induce flowering in Peace lilies?
    A: Gibberellic acid
    B: Calcium oxalate
    C: Nitrogen
    D: Potash
    Correct Answer: A
    Explanation: Gibberellic acid is used commercially to induce flowering in Peace lilies.
  19. How are Peace lilies typically propagated commercially?
    A: By seeds
    B: By cuttings
    C: By plant tissue culture
    D: By grafting
    Correct Answer: C
    Explanation: Peace lilies are typically propagated by plant tissue culture.
  20. What climate conditions do Peace lilies grow best in?
    A: Freezing temperatures
    B: 70 to 90°F (21 to 32°C)
    C: Below 10°C (50°F)
    D: Extremely arid conditions
    Correct Answer: B
    Explanation: Peace lilies grow best between temperatures of 70 to 90°F (21 to 32°C).
  21. How often should the soil be watered for optimal Peace lily care?
    A: Once a day
    B: Every hour
    C: When the soil is dry
    D: Once every two months
    Correct Answer: C
    Explanation: Peace lilies need watering when the soil is dry.
  22. Are Peace lilies true lilies?
    A: Yes
    B: No
    Correct Answer: B
    Explanation: Peace lilies are not true lilies and are from the family Araceae, not Liliaceae.
  23. What effect does the Peace lily have when ingested by humans?
    A: Highly toxic
    B: Mildly toxic
    C: Harmless
    D: Energizing
    Correct Answer: B
    Explanation: Peace lilies are only mildly toxic to humans and other animals when ingested.
  24. Which part of the Peace lily causes skin irritation and a burning sensation in the mouth?
    A: Calcium oxalate crystals
    B: Organic acids
    C: Sugars
    D: Proteins
    Correct Answer: A
    Explanation: The Peace lily contains calcium oxalate crystals which can cause irritation and burning sensations.
  25. What discovery related to Peace lily diseases was first made in Tokyo between 1989-1994?
    A: Grey mould disease
    B: Leaf wilt
    C: Stem rust
    D: Root rot
    Correct Answer: A
    Explanation: The grey mould disease affecting Peace lilies was first noticed in Tokyo between 1989-1994.
  26. What genus did Heinrich Wilhelm Schott originally describe the Peace lily in 1832?
    A: Massowia
    B: Hydnostachyon
    C: Peace lily
    D: Anthurium
    Correct Answer: C
    Explanation: Heinrich Wilhelm Schott described the genus Peace lily in 1832 in his book “Meletemata Botanica”.
  27. What are the other genera names equivalent to Peace lily, given by Frederik Liebmann and Karl Koch?
    A: Anthurium and Dracontium
    B: Hydnostachyon and Massowia
    C: Urospatha and Spathiphyllopsis
    D: Amomophyllum and Leucochlamys
    Correct Answer: B
    Explanation: Frederik Liebmann named it Hydnostachyon and Karl Koch named it Massowia.
  28. What was the basis for Heinrich Wilhelm Schott’s redefinition of Peace lily in 1853?
    A: Its medicinal properties
    B: A new habitat discovery
    C: Better microscopic analysis of structures
    D: Moving S. sagittaefolium into the new genus Urospatha
    Correct Answer: D
    Explanation: Schott redefined Peace lily in 1853 by moving S. sagittaefolium into the new genus Urospatha.
  29. How many species did George S. Bunting’s PhD thesis encompass in his revision of Peace lily in 1960?
    A: 22
    B: 36
    C: 45
    D: 57
    Correct Answer: B
    Explanation: George S. Bunting’s revision encompassed a total of 36 species.
  30. What fruit is pickled in vinegar from the Peace lily used as food?
    A: The young spadix of S. matudae
    B: The mature leaves
    C: The roots
    D: The stem
    Correct Answer: A
    Explanation: The young spadix of S. matudae is pickled in vinegar.
  31. Which type of leaf rot disease affecting Peace lilies was noticed in Argentina in 2008?
    A: Bacterial leaf rot disease
    B: Root rot disease
    C: Powdery mildew
    D: Leaf spot
    Correct Answer: A
    Explanation: Bacterial leaf rot disease affecting Peace lilies was first noticed in Argentina in 2008.
  32. What type of diseases first identified during in vitro culture threaten Peace lilies?
    A: Leaf eating caterpillars
    B: Myrothecium disease
    C: Rust fungus
    D: Worm infestation
    Correct Answer: B
    Explanation: Myrothecium disease was a significant problem during in vitro culture of Peace lilies.
  33. Which parts of the Peace lily can have grey molded disease?
    A: Flowers
    B: Leaves
    C: Roots
    D: All of the above
    Correct Answer: D
    Explanation: Grey mold disease can affect various parts of the Peace lily.
  34. What is the main cultural use of Peace lilies?
    A: Food crop
    B: Medicinal plant
    C: Ornamental houseplant
    D: Building material
    Correct Answer: C
    Explanation: Peace lilies are primarily used as ornamental houseplants.
  35. What is a symptom of leaf damage due to a disease?
    A: Water-soaked areas starting from the leaf tip
    B: Bright green spotting
    C: Early fall coloration
    D: Bent stems
    Correct Answer: A
    Explanation: Ailments of the Peace lily manifest as water-soaked areas starting from the leaf tip.
  36. Which genera in the family Araceae have similar looking plants to Peace lilies?
    A: Orchis
    B: Anthurium
    C: Rosa
    D: Helianthus
    Correct Answer: B
    Explanation: Anthurium is a similar-looking genus in the same family Araceae.
  37. What kind of leaves do Peace lily plants have?
    A: Simple and oval
    B: Compound and lobed
    C: Elliptical or lanceolate
    D: Needle-shaped
    Correct Answer: C
    Explanation: Peace lily leaves are elliptical or lanceolate.
  38. What supports the Peace lily leaves on stems?
    A: Shoots (petioles)
    B: Tendrils
    C: Bulbs
    D: Rhizomes
    Correct Answer: A
    Explanation: Peace lily leaves are supported on shoots (petioles).
  39. What genus did Schott move S. sagittaefolium into in his 1853 redefinition of Peace lily?
    A: Anthurium
    B: Urospatha
    C: Spathiphyllopsis
    D: Dracontium
    Correct Answer: B
    Explanation: Schott moved S. sagittaefolium into the genus Urospatha in his 1853 redefinition.
  40. What is the effect of calcium oxalate crystals found in Peace lilies?
    A: Energizing
    B: Skin irritation and burning sensation
    C: Cooling
    D: Anti-bacterial
    Correct Answer: B
    Explanation: Calcium oxalate crystals in Peace lilies can cause skin irritation and burning sensation.
  41. How long do pollen-producing Peace lily flowers generally last?
    A: Up to one day
    B: Up to four days
    C: Up to a week
    D: Up to a month
    Correct Answer: B
    Explanation: Peace lily flowers produce pollen for up to four days.
  42. What common environmental condition can Peace lilies handle well outdoors?
    A: Harsh sunlight
    B: Arid conditions
    C: Hot and humid weather
    D: Freezing temperatures
    Correct Answer: C
    Explanation: Peace lilies can handle hot and humid weather well when planted outdoors.
  43. What popular cultivar of Peace lily is awarded by the Royal Horticultural Society?
    A: ‘Clevelandii’
    B: ‘Mauna Loa’
    C: ‘Atrovirens’
    D: ‘Monachinoi’
    Correct Answer: B
    Explanation: The ‘Mauna Loa’ cultivar has received the Royal Horticultural Society’s Award of Garden Merit.
  44. Is the Peace lily more tolerant to light or shade?
    A: Light
    B: Extreme light
    C: Moderate light
    D: Shade
    Correct Answer: D
    Explanation: Peace lilies live best in shade and need little sunlight to thrive.
  45. What chemical does Peace lily contain that can irritate the mouth and cause difficulty swallowing?
    A: Arsenic
    B: Calcium oxalate
    C: Mercury
    D: Lead
    Correct Answer: B
    Explanation: Calcium oxalate in Peace lilies can cause mouth irritation and difficulty swallowing.
  46. From which parts do Peace lily leaves emerge?
    A: Flowers
    B: Underground creeping stem
    C: Aerial roots
    D: Unicellular trichomes
    Correct Answer: B
    Explanation: Peace lily leaves emerge directly from a low-lying or underground creeping stem.
  47. When was the grey mold disease in Peace lilies first noticed?
    A: Between 1979-1983
    B: Between 1989-1994
    C: Between 2000-2005
    D: Between 2010-2015
    Correct Answer: B
    Explanation: The grey mold disease affecting Peace lilies was first noticed in Tokyo Metropolis, Japan between 1989-1994.
  48. What is the importance of the Myrothecium disease in Peace lilies?
    A: Causes root rot
    B: Significant issue during in vitro culture
    C: Affects only flowers
    D: Has no impact on plant health
    Correct Answer: B
    Explanation: Myrothecium disease was an important issue during the in vitro culture of Peace lilies.
  49. What classification comes directly before the genus for Peace lilies?
    A: Family
    B: Tribe
    C: Clade
    D: Subfamily
    Correct Answer: B
    Explanation: The tribe Spathiphylleae comes directly before the genus for Peace lilies.
  50. How resistant are Peace lilies to drought conditions?
    A: Very resistant
    B: Moderately resistant
    C: Poorly resistant
    D: Immune
    Correct Answer: C
    Explanation: Peace lilies are not very resistant to drought conditions as they thrive in shady, moist, or wet areas.
  51. What was Heinrich Wilhelm Schott’s contribution to the taxonomy of Peace lilies?
    A: Describing the genus in 1832 and redefining it in 1853
    B: Introducing new varieties in 1990
    C: First recognizing Peace lilies as medicinal plants
    D: Discriminating between edible and non-edible types
    Correct Answer: A
    Explanation: Heinrich Wilhelm Schott described the genus Peace lily in 1832 and redefined it in 1853.
  52. How are Peace lilies most commonly cultivated for retail?
    A: By division
    B: Through grafting
    C: Via plant tissue culture
    D: Using hydroponics
    Correct Answer: C
    Explanation: Peace lilies are commonly propagated through plant tissue culture for commercial purposes.
  53. What is the botanical structure that supports the flowers on Peace lilies?
    A: Petiole
    B: Peduncle
    C: Spathiphylle
    D: Canopy
    Correct Answer: B
    Explanation: The peduncle supports the flowers on Peace lilies.
  54. What element of the Peace lily did S. matudae use as food?
    A: Stem
    B: Young spadix
    C: Mature leaves
    D: Flowers
    Correct Answer: B
    Explanation: The young spadix of S. matudae is pickled in vinegar or cooked with eggs.
  55. Which disease in Peace lilies shows water-soaked areas from the leaf tip?
    A: Leaf scorch
    B: Leaf spot
    C: Bacterial leaf rot disease
    D: Sunburn
    Correct Answer: C
    Explanation: Bacterial leaf rot disease manifests as water-soaked areas starting from the leaf tip in Peace lilies.
  56. Which part of Peace lily flowers contain both male and female reproductive parts?
    A: Spathe
    B: Petal
    C: Spadix
    D: Root
    Correct Answer: C
    Explanation: The spadix of a Peace lily contains both the male and female reproductive parts.
  57. What genus does Schott claim as more appropriately Peace lily?
    A: Urospatha
    B: Massowia
    C: Spathiphyllopsis
    D: Amomophyllum
    Correct Answer: B
    Explanation: Schott claimed Massowia to be more appropriately classified as Peace lily.
  58. What consists of the flowering structure in Peace lilies?
    A: A single white or greenish-white spathe partially surrounding the spadix
    B: Multiple small florets
    C: Clusters of berries
    D: Pollen cones
    Correct Answer: A
    Explanation: The flowering structure in Peace lilies consists of a single white or greenish-white spathe partially surrounding the spadix.
  59. What destroys many of Peace lily type specimens in Vienna and Berlin?
    A: Fire in Vienna
    B: World war in Berlin
    C: Both A and B
    D: Pest infestations
    Correct Answer: C
    Explanation: Collections of Peace lily type specimens were destroyed by fire in Vienna and by war in Berlin.
  60. What study did George S. Bunting perform related to Peace lilies?
    A: Field research in tropical forests
    B: Lab-based genetic modifications
    C: PhD thesis revising the genus Peace lily
    D: Ecological analysis in urban areas
    Correct Answer: C
    Explanation: George S. Bunting revised the Peace lily genus as part of his PhD thesis work.

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