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