How to Identify and Classify Sorb Apples
  • 1. What is the genus of Sorb apples (Sorbus)?
A) Crataegus
B) Sorbus
C) Pyrus
D) Malus
  • 2. Which of the following is a key characteristic of Sorbus leaves?
A) Simple and lobed
B) Needle-like
C) Palmately compound
D) Pinnately compound
  • 3. What is the fruit of a Sorbus tree typically called?
A) Drupe
B) Berry
C) Capsule
D) Pome
  • 4. What color are Sorbus berries typically?
A) Green
B) Red, orange, or yellow
C) Blue or purple
D) Black
  • 5. Which feature is MOST helpful in distinguishing between different Sorbus species?
A) Tree height
B) Bark texture
C) Leaflet shape and number
D) Flower color
  • 6. What is the typical habitat of many Sorbus species?
A) Deserts
B) Woodland edges and hedgerows
C) Aquatic environments
D) Tropical rainforests
  • 7. Are Sorbus berries typically considered palatable raw?
A) Yes, but only when unripe
B) Yes, very sweet
C) Only in specific cultivars
D) No, often astringent
  • 8. Which is a common use for Sorbus berries?
A) Animal feed only
B) Salad dressings
C) Construction materials
D) Jams and jellies
  • 9. What type of flowering does Sorbus exhibit?
A) Catkins
B) Large, solitary flowers
C) Brightly colored, showy blooms
D) Clusters of small, white flowers
  • 10. What is the bark texture of a mature Sorbus tree typically like?
A) Papery and peeling
B) Rough and deeply furrowed
C) Smooth and grey, becoming fissured with age
D) Spiny
  • 11. Which of these is NOT a common Sorbus species?
A) Sorbus domestica (Service Tree)
B) Sorbus aria (Whitebeam)
C) Sorbus aucuparia (Rowan)
D) Sorbus pinea (Pine Apple)
  • 12. What shape are the leaflets of Sorbus aucuparia (Rowan) typically?
A) Round
B) Heart-shaped
C) Ovate
D) Lanceolate
  • 13. What is a distinguishing feature of Sorbus aria (Whitebeam) leaves?
A) Silvery-white underside
B) Prominent veins
C) Toothed edges
D) Glossy green surface
  • 14. What is the term used to describe the fuzzy covering on some Sorbus leaves?
A) Pubescent
B) Scabrous
C) Glabrous
D) Tomentose
  • 15. How are Sorbus seeds dispersed?
A) By explosive dispersal
B) By wind
C) By water
D) By birds and other animals
  • 16. Which season do Sorbus trees typically flower in?
A) Autumn
B) Summer
C) Spring
D) Winter
  • 17. Which of the following is a hybrid Sorbus species?
A) Sorbus ulleungensis
B) Sorbus americana
C) Sorbus commixta
D) Sorbus x thuringiaca
  • 18. What does 'aucuparia' in Sorbus aucuparia refer to?
A) Medicinal properties
B) Berry color
C) Leaf shape
D) Attracting birds
  • 19. What does the term 'pinnate' refer to regarding Sorbus leaves?
A) Leaf texture
B) Leaf color
C) Arrangement of leaflets on either side of a stem
D) Leaf size
  • 20. What is a key difference between Sorbus aria and Sorbus aucuparia in terms of leaf complexity?
A) Both have simple leaves.
B) Both have compound leaves.
C) Sorbus aria has simple leaves; Sorbus aucuparia has compound leaves.
D) Sorbus aria has compound leaves; Sorbus aucuparia has simple leaves.
  • 21. What is a potential pest that can affect Sorbus trees?
A) Earthworms
B) Ladybugs
C) Beavers
D) Aphids
  • 22. What is the geographic origin of Sorbus trees?
A) Mostly native to the Northern Hemisphere
B) Exclusively found in Australia
C) Exclusively found in South America
D) Mostly native to Africa
  • 23. What is the typical lifespan of a Sorbus tree?
A) 10-20 years
B) 50-100 years
C) 200-300 years
D) 1000+ years
  • 24. Which characteristic of Sorbus berries makes them useful for wildlife?
A) High in calcium
B) High in protein
C) High in fat
D) High in Vitamin C
  • 25. What is one way to prepare Sorbus berries to reduce astringency?
A) Salting
B) Freezing
C) Drying
D) Boiling
  • 26. What is the botanical term for the arrangement of flowers in a cluster, common in Sorbus?
A) Raceme
B) Corymb
C) Spike
D) Umbel
  • 27. Which Sorbus species is known for its larger, pear-shaped fruits?
A) Sorbus torminalis
B) Sorbus aucuparia
C) Sorbus domestica
D) Sorbus aria
  • 28. What type of soil do Sorbus trees generally prefer?
A) Clay
B) Waterlogged
C) Well-drained
D) Sandy
  • 29. What is a traditional medicinal use of Sorbus berries?
A) Relieving headaches
B) Treating scurvy
C) Lowering blood pressure
D) Curing insomnia
  • 30. What is the primary identifying characteristic when young?
A) Height
B) Buds
C) Bark
D) Berries
Created with That Quiz — where a math practice test is always one click away.