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