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