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How to Identify and Classify Fir Trees
  • 1. Which needle arrangement is most typical of fir trees?
A) Needles in bundles of two or three
B) Scale-like needles
C) Needles arranged in whorls
D) Single needles attached directly to the twig
  • 2. What is a key characteristic of fir cones that distinguishes them from other conifers?
A) They stand upright and disintegrate on the tree
B) They are covered in sharp spines
C) They are very small and inconspicuous
D) They hang downwards and fall to the ground whole
  • 3. What is the cross-sectional shape of a fir needle?
A) Circular
B) Triangular
C) Flat or slightly rounded
D) Square
  • 4. Which of these features is NOT typically used for fir tree identification?
A) Bark texture
B) Needle length
C) Root structure
D) Cone characteristics
  • 5. What type of scars are left on a fir twig after the needles fall off?
A) No scars
B) Diamond-shaped scars
C) Raised scars
D) Circular scars
  • 6. What is the typical color of mature fir bark?
A) Bright red
B) Green
C) Yellow
D) Gray or brownish-gray
  • 7. Which of the following is a common habitat for fir trees?
A) Mountainous regions
B) Deserts
C) Swamps
D) Tropical rainforests
  • 8. How does the needle attachment of a fir tree differ from a spruce tree?
A) Fir needles are in bundles, spruce needles are single.
B) Fir needles are attached directly, spruce needles have a small peg.
C) The attachment is the same.
D) Fir needles have a peg, spruce needles are attached directly.
  • 9. What is the common name for Abies balsamea?
A) Balsam Fir
B) Noble Fir
C) Douglas Fir
D) White Fir
  • 10. Which fir species is known for its bluish-green needles?
A) Colorado Blue Fir (Abies concolor)
B) Red Fir (Abies magnifica)
C) Grand Fir (Abies grandis)
D) Fraser Fir (Abies fraseri)
  • 11. What is the primary use of fir wood?
A) Musical instruments
B) Fuelwood
C) Furniture making
D) Lumber and pulpwood
  • 12. Which fir species has a strong, citrus-like scent when its needles are crushed?
A) Grand Fir (Abies grandis)
B) Balsam Fir (Abies balsamea)
C) White Fir (Abies concolor)
D) Noble Fir (Abies procera)
  • 13. The cones of what fir species often have prominent bracts extending beyond the scales?
A) Noble Fir (Abies procera)
B) California Red Fir (Abies magnifica)
C) Subalpine Fir (Abies lasiocarpa)
D) Balsam Fir (Abies balsamea)
  • 14. What is a bract?
A) A modified leaf located below a flower or cone scale
B) A type of root
C) A type of seed
D) A type of bark
  • 15. Which fir species is most susceptible to balsam woolly adelgid infestations?
A) Noble Fir (Abies procera)
B) White Fir (Abies concolor)
C) Balsam Fir (Abies balsamea)
D) Grand Fir (Abies grandis)
  • 16. At what elevation are Subalpine Fir Trees usually found?
A) Along coastlines
B) Low elevations
C) In deserts
D) High elevations
  • 17. Which fir tree is know for having a spire-like crown?
A) Subalpine Fir
B) Grand Fir
C) White Fir
D) Balsam Fir
  • 18. What are the seed wings like on fir tree seeds?
A) Small and hard
B) Large and papery
C) Fleshy
D) Absent
  • 19. What is the growth rate of fir trees generally considered to be?
A) Slow to moderate
B) Extremely slow
C) Very fast
D) Variable depending on the species
  • 20. What role do fir trees play in the ecosystem?
A) Contribute to air pollution
B) Inhibit the growth of other plants
C) Deplete soil nutrients
D) Provide habitat and watershed protection
  • 21. Which characteristic is NOT helpful in distinguishing different species of fir?
A) The length and color of the needles
B) The texture and color of the bark
C) The color of the wood inside the tree
D) The shape and size of the cone
  • 22. How does the bark of young fir trees typically appear?
A) Thick and furrowed
B) Scaly and peeling
C) Smooth and resinous
D) Covered in lichens
  • 23. What type of soil do fir trees generally prefer?
A) Waterlogged soil
B) Sandy, alkaline soil
C) Well-drained, acidic soil
D) Heavy clay soil
  • 24. What is the significance of the 'Christmas tree' shape associated with many fir species?
A) Efficient light capture and snow shedding
B) Wind resistance
C) Defense against herbivores
D) Attraction of pollinators
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