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How to Identify and Classify Ash Trees
Contributed by: Crossley
  • 1. Which leaf arrangement is characteristic of ash trees?
A) Whorled
B) Opposite
C) Basal
D) Alternate
  • 2. What is the typical shape of ash tree leaves?
A) Simple
B) Spatulate
C) Palmately compound
D) Pinnately compound
  • 3. How many leaflets typically make up an ash leaf?
A) 11-15
B) 1-3
C) 3-5
D) 5-11
  • 4. What is the shape of the leaflets on an ash leaf?
A) Lance-shaped to oblong
B) Round
C) Needle-like
D) Heart-shaped
  • 5. What is the margin of ash leaflets typically like?
A) Lobed
B) Entire
C) Serrated
D) Smooth
  • 6. What is the bark of a mature ash tree typically like?
A) Diamond-shaped ridges and furrows
B) Smooth and gray
C) Scaly plates
D) Peeling papery bark
  • 7. What color are ash twigs typically?
A) Gray to brown
B) Red
C) Yellow
D) Bright green
  • 8. What shape are ash buds typically?
A) Globose
B) Pointed
C) Rounded
D) Stalked
  • 9. What color are ash buds typically?
A) White
B) Green
C) Red
D) Dark brown to black
  • 10. What is the shape of ash tree seeds (samaras)?
A) Triangular
B) Oar-shaped
C) Round
D) Berry-like
  • 11. How are ash samaras typically arranged?
A) In pods
B) Singly
C) In clusters
D) In cones
  • 12. Which of these is a common ash species in North America?
A) White Ash
B) Eastern White Pine
C) Silver Maple
D) Quaking Aspen
  • 13. Which of these is another common ash species?
A) Green Ash
B) Paper Birch
C) American Beech
D) Red Oak
  • 14. What is a key difference between white ash and green ash?
A) Green ash has opposite branching
B) Green ash is only found in the east
C) White ash has serrated edges
D) White ash leaflets are paler underneath
  • 15. What is the texture of white ash twigs?
A) Smooth
B) Spiny
C) Hairy
D) Rough
  • 16. What is the texture of green ash twigs?
A) Slightly hairy or smooth
B) Waxy
C) Spiny
D) Very hairy
  • 17. What threat significantly impacts ash trees?
A) Gypsy Moth
B) Spruce Budworm
C) Asian Longhorned Beetle
D) Emerald Ash Borer
  • 18. What part of the ash tree does the Emerald Ash Borer primarily damage?
A) Roots
B) Leaves
C) Outer bark
D) Inner bark (phloem)
  • 19. What is a common symptom of Emerald Ash Borer infestation?
A) Yellowing needles
B) D-shaped exit holes
C) Large round holes
D) Sap oozing from the trunk
  • 20. What is a distinguishing characteristic of Black Ash?
A) Perfectly smooth bark
B) Bright red samaras
C) Alternate leaf arrangement
D) Sessile leaflets
  • 21. What does "sessile" mean in the context of Black Ash leaflets?
A) Lacking a stalk
B) Having a hairy surface
C) Having a toothed margin
D) Being unusually large
  • 22. How can you confirm a tree is an ash tree when leaves are absent?
A) Look for needles
B) Smell the bark
C) Check for thorns on the trunk
D) Observe the opposite branching pattern
  • 23. Which ash species is most susceptible to Emerald Ash Borer?
A) Green Ash is resistant
B) White Ash is resistant
C) All ash species are susceptible
D) Black Ash is resistant
  • 24. What color change often occurs in ash leaves before they drop in the fall?
A) Brown
B) Purple
C) Red
D) Yellow
  • 25. What is the typical habitat of ash trees?
A) Moist, well-drained soils
B) Swamps
C) Rocky hillsides
D) Dry, sandy soils
  • 26. What is a common use for ash wood?
A) Baseball bats
B) Insulation
C) Paper production
D) Fuel wood
  • 27. Which of the following is NOT a characteristic of ash trees?
A) Needle-like leaves
B) Pinnately compound leaves
C) Diamond-shaped bark ridges
D) Opposite leaf arrangement
  • 28. What type of symmetry do ash leaves exhibit?
A) Spiral symmetry
B) Radial symmetry
C) Asymmetry
D) Bilateral symmetry
  • 29. What is the best time of year to identify ash trees using leaf characteristics?
A) Late fall
B) Summer
C) Winter
D) Early spring
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