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Basil - Quiz
Contributed by: Burton
  • 1. Which species is also known as Camphor basil?
A) Ocimum gratissimum
B) Ocimum basilicum
C) Ocimum tenuiflorum
D) Ocimum kilimandscharicum
  • 2. What is another name for Ocimum gratissimum?
A) Greek basil
B) Clove basil
C) Anise basil
D) Thai basil
  • 3. What is the former name for Holy basil (Ocimum tenuiflorum)?
A) O. gratissimum
B) O. basilicum
C) O. minimum
D) O. sanctum
  • 4. How many botanical varieties of Ocimum basilicum are accepted by the Plants of the World Online database?
A) Sixty
B) Three
C) Two
D) One
  • 5. Where is Ocimum basilicum var. minimum native to?
A) Thailand
B) Italy and Greece
C) Africa
D) India and Sri Lanka
  • 6. Why is the exact taxonomy of basil considered uncertain?
A) Due to immense cultivars and frequent cross-pollination
B) Because it only grows in one region
C) Because it is not a real plant
D) Due to a lack of genetic research
  • 7. Approximately how many varieties of Ocimum basilicum are there?
A) At least 60
B) Less than 5
C) Over 500
D) Exactly 10
  • 8. Most basil varieties have leaves of what color?
A) Purple
B) Blue
C) Green
D) Yellow
  • 9. Which of these is a purple basil cultivar?
A) Greek basil
B) Lettuce leaf basil
C) Genovese basil
D) Purple Delight
  • 10. What is the scientific name for Cinnamon basil?
A) Ocimum gratissimum
B) Ocimum basilicum var. thyrsifolium
C) Ocimum tenuiflorum
D) Ocimum basilicum 'Cinnamon'
  • 11. What is another name for Globe basil?
A) Dwarf basil
B) Mammoth basil
C) Rubin basil
D) Thai basil
  • 12. Which variety is known as Lettuce leaf basil?
A) Ocimum basilicum 'Crispum'
B) Ocimum basilicum 'Purpurescens'
C) Ocimum basilicum 'Minimum'
D) Ocimum basilicum 'Rubin'
  • 13. Which of these is a synonym for Napolitano basil?
A) Anise basil
B) Cinnamon basil
C) Dark opal basil
D) Mammoth basil
  • 14. To which plant family does basil belong?
A) Lamiaceae
B) Solanaceae
C) Asteraceae
D) Apiaceae
  • 15. How is basil typically treated in temperate climates?
A) As an annual plant
B) As a winter bulb
C) As a long-lived perennial
D) As a deciduous shrub
  • 16. What is the maximum height basil plants can reach?
A) 50 centimetres
B) 150 centimetres
C) 30 centimetres
D) 200 centimetres
  • 17. How are the leaves of a basil plant arranged on the stem?
A) As a single basal rosette
B) In opposite pairs
C) In whorls
D) In alternate patterns
  • 18. What shape do basil leaves typically have?
A) Ovate
B) Cordate
C) Linear
D) Lanceolate
  • 19. What shape is the stem of a basil plant?
A) Hexagonal
B) Round
C) Triangular
D) Square
  • 20. What color are the flowers of a basil plant?
A) Purple
B) White
C) Blue
D) Yellow
  • 21. What component gives sweet basil its clove scent?
A) Myrcene
B) 1,8-cineole
C) Eugenol
D) Linalool
  • 22. What is the ratio of linalool to methyl chavicol in European basil essential oil?
A) 1:3
B) 2:1
C) 3:1
D) 1:1
  • 23. What does the term 'entomophilous' refer to in the pollination process of basil?
A) Pollination by wind
B) Self-pollination
C) Pollination by insects
D) Pollination by water
  • 24. Which cultivar of basil is known for having purple leaves?
A) 'Thyrsiflora'
B) 'Purple Ruffles'
C) 'Citriodorum'
D) 'Mrs. Burns' Lemon'
  • 25. In French, what is basil sometimes called?
A) L'herbe du jardin
B) La plante du roi
C) Le parfum royal
D) L'herbe royale
  • 26. What type of weather condition is basil sensitive to?
A) Heat
B) Direct sunlight
C) Humidity
D) Cold
  • 27. What happens to a basil plant when it flowers?
A) Foliage production stops
B) The roots grow deeper
C) It produces more essential oil
D) It grows taller
  • 28. What is the effect of pruning flower stems on a basil plant?
A) Stops seed production entirely
B) Turns the leaves red
C) Kills the entire plant
D) Prevents the stem from becoming woody
  • 29. What type of soil does basil prefer?
A) Waterlogged soil
B) Heavy clay soil
C) Well-drained organic soil
D) Sandy soil without organic matter
  • 30. What happens if there is poor soil drainage?
A) Better essential oil yield
B) Faster growth
C) Increased flavor
D) Root hypoxia
  • 31. What light colors specifically increase growth and flower bud production?
A) Infrared + ultraviolet
B) White + orange
C) Red + blue
D) Green + yellow
  • 32. Where should you keep indoor basil plants?
A) In a dark closet
B) In a high-draft area
C) Sun-facing windowsill
D) Under a heater
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