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How to Identify and Classify Spruce Trees
Contributed by: Crossley
  • 1. What is the genus name for spruce trees?
A) Picea
B) Abies
C) Larix
D) Pinus
  • 2. Spruce needles are typically what shape?
A) Four-sided (quadrangular)
B) Round
C) Scale-like
D) Flat
  • 3. How are spruce needles attached to the twig?
A) On woody pegs (sterigmata)
B) In bundles
C) Directly to the twig
D) With a sheath
  • 4. Spruce cones typically hang in which direction?
A) Downward
B) Horizontal
C) Upward
D) At an angle
  • 5. Which of the following is a key characteristic of spruce cones?
A) They release their scales individually
B) They disintegrate on the tree
C) They fall intact from the tree
D) They remain on the tree for many years
  • 6. What is the color of needles for the blue spruce?
A) Dark green
B) Yellowish-green
C) Bluish-green to silvery-blue
D) Light green
  • 7. The scientific name for blue spruce is?
A) Picea rubens
B) Picea pungens
C) Picea abies
D) Picea mariana
  • 8. Which spruce species is known for its drooping branchlets?
A) White Spruce
B) Norway Spruce
C) Colorado Blue Spruce
D) Black Spruce
  • 9. The scientific name for Norway spruce is?
A) Picea sitchensis
B) Picea abies
C) Picea glauca
D) Picea mariana
  • 10. Which spruce is often found in boggy or swampy areas?
A) Serbian Spruce
B) Red Spruce
C) Black Spruce
D) White Spruce
  • 11. The scientific name for Black spruce is?
A) Picea mariana
B) Picea omorika
C) Picea rubens
D) Picea pungens
  • 12. What is a common characteristic of Red Spruce cones?
A) Reddish-brown color
B) Bright blue color
C) Dark purple color
D) Green color
  • 13. The scientific name for Red spruce is?
A) Picea engelmannii
B) Picea sitchensis
C) Picea rubens
D) Picea abies
  • 14. Which spruce has a strong, unpleasant odor when the needles are crushed?
A) Norway Spruce
B) White Spruce
C) Blue Spruce
D) Red Spruce
  • 15. The scientific name for White spruce is?
A) Picea glauca
B) Picea mariana
C) Picea omorika
D) Picea pungens
  • 16. Which spruce is native to the Pacific Northwest and is the largest spruce species?
A) Red Spruce
B) Engelmann Spruce
C) White Spruce
D) Sitka Spruce
  • 17. The scientific name for Sitka spruce is?
A) Picea sitchensis
B) Picea abies
C) Picea rubens
D) Picea mariana
  • 18. Engelmann Spruce is commonly found in which type of environment?
A) Swamps
B) High elevations
C) Coastal regions
D) Deserts
  • 19. The scientific name for Engelmann spruce is?
A) Picea glauca
B) Picea sitchensis
C) Picea abies
D) Picea engelmannii
  • 20. What is the growth habit of Serbian Spruce?
A) Weeping
B) Narrow and columnar
C) Rounded
D) Broad and spreading
  • 21. The scientific name for Serbian spruce is?
A) Picea abies
B) Picea mariana
C) Picea omorika
D) Picea pungens
  • 22. What does 'glauca' mean in botanical Latin?
A) Black
B) White
C) Reddish
D) Bluish-green
  • 23. What does 'pungens' mean in botanical Latin?
A) Fragrant
B) Drooping
C) Small
D) Sharp-pointed
  • 24. The presence of glaucous (bluish-white) bloom on needles helps identify which tree?
A) White Spruce
B) Black Spruce
C) Red Spruce
D) Blue Spruce
  • 25. Which is not a characteristic that helps identify trees?
A) Bark Pattern
B) Needle Shape
C) Cone Type
D) Soil pH
  • 26. What does 'sterigmata' refer to in spruce identification?
A) Branchlets
B) Woody pegs where needles attach
C) Cone scales
D) Bark ridges
  • 27. Which spruce has needles that are flattened in cross-section?
A) Blue Spruce
B) Red Spruce
C) None, spruce needles are typically 4-sided
D) White Spruce
  • 28. What bark color is commonly associated with mature Black Spruce?
A) Light gray
B) Whitish
C) Bright red
D) Dark gray-brown
  • 29. Which of these spruces is considered more shade-tolerant?
A) Sitka Spruce
B) Red Spruce
C) White Spruce
D) Blue Spruce
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