How to Identify and Classify Dogwood Trees
  • 1. What is the most distinguishing characteristic of most flowering dogwoods?
A) Four showy bracts surrounding tiny, inconspicuous flowers.
B) Smooth, gray bark.
C) Palmately compound leaves.
D) Alternate leaf arrangement.
  • 2. What is the typical leaf arrangement of a dogwood tree?
A) Whorled
B) Basal
C) Opposite
D) Alternate
  • 3. What is the typical shape of dogwood leaves?
A) Needle-like
B) Round
C) Oval to elliptical
D) Triangular
  • 4. What is a bract?
A) A true petal of a flower.
B) A modified leaf that resembles a petal.
C) A specialized root structure.
D) A type of fruit.
  • 5. What color are the typical 'flowers' (bracts) of a flowering dogwood?
A) White or pink
B) Yellow or orange
C) Blue or purple
D) Green or brown
  • 6. What type of fruit does a dogwood tree produce?
A) Capsule
B) Berry
C) Drupe
D) Pome
  • 7. What is the color of the fruit of a flowering dogwood?
A) Bright red
B) Yellow
C) Black
D) Green
  • 8. In what season does the flowering dogwood typically bloom?
A) Summer
B) Winter
C) Spring
D) Autumn
  • 9. What bark characteristic is often present on mature flowering dogwood trees?
A) Smooth, papery bark
B) Deeply furrowed bark
C) Alligator hide pattern
D) Spiny bark
  • 10. What is the primary habitat of flowering dogwood?
A) Coniferous forests
B) Open meadows
C) Understory of deciduous forests
D) Swamps
  • 11. What is a common disease that affects dogwood trees?
A) Pine beetle infestation
B) Oak wilt
C) Dogwood anthracnose
D) Dutch elm disease
  • 12. Which dogwood species is known for its blue-purple berries?
A) Red Osier Dogwood (Cornus sericea)
B) Silky Dogwood (Cornus amomum)
C) Flowering Dogwood (Cornus florida)
D) Kousa Dogwood (Cornus kousa)
  • 13. Which of these is NOT a characteristic used for dogwood identification?
A) Fruit color
B) Root depth
C) Bark texture
D) Leaf shape
  • 14. What is the scientific name for the Flowering Dogwood?
A) Acer rubrum
B) Pinus strobus
C) Cornus florida
D) Quercus alba
  • 15. Which dogwood species has bracts that are more pointed than rounded?
A) Red Osier Dogwood (Cornus sericea)
B) Kousa Dogwood (Cornus kousa)
C) Flowering Dogwood (Cornus florida)
D) Silky Dogwood (Cornus amomum)
  • 16. What is the typical size of a mature flowering dogwood tree?
A) 50-75 feet
B) 100+ feet
C) 15-30 feet
D) 5-10 feet
  • 17. The veins in a dogwood leaf typically curve toward the...
A) Midrib
B) Petiole
C) Base
D) Tip
  • 18. What is the growth habit of the Red Osier Dogwood?
A) Single-trunk tree
B) Groundcover
C) Vine
D) Multi-stemmed shrub
  • 19. The Red Osier Dogwood is most easily identified in winter by its...
A) Persistent leaves
B) Cones
C) Large thorns
D) Bright red stems
  • 20. What is the USDA hardiness zone range for flowering dogwood?
A) 1-3
B) 10-12
C) 5-9
D) 3-6
  • 21. Kousa Dogwood bracts appear...
A) After the leaves emerge.
B) Before the leaves emerge.
C) Only if the tree is under stress.
D) Simultaneously with leaf emergence.
  • 22. Which dogwood has the largest bracts?
A) Flowering Dogwood (Cornus florida)
B) Kousa Dogwood (Cornus kousa)
C) Red Osier Dogwood (Cornus sericea)
D) Pacific Dogwood (Cornus nuttallii)
  • 23. What is the term for the stalk that attaches the leaf to the stem?
A) Petiole
B) Lenticel
C) Midrib
D) Blade
  • 24. What is the term for the edges of a leaf?
A) Vein
B) Base
C) Margin
D) Apex
  • 25. What type of wood is dogwood wood?
A) Soft and lightweight
B) Very hard and dense
C) Brittle and easily broken
D) Flexible and bendable
  • 26. What is a common use for dogwood wood historically?
A) Roofing shingles
B) Paper pulp
C) Fuel for heating
D) Shuttlecocks for weaving
  • 27. What is a key difference between the fruit of Kousa Dogwood and Flowering Dogwood?
A) Flowering Dogwood fruit is blue, Kousa Dogwood fruit is red.
B) Kousa Dogwood fruit is larger than Flowering Dogwood fruit.
C) Only Flowering Dogwood produces fruit.
D) Kousa Dogwood fruit is edible and fleshy, Flowering Dogwood fruit is not generally eaten.
  • 28. Which of the following is a cultivar of flowering dogwood known for its red bracts?
A) Rubra
B) Argenteomarginata
C) Alba
D) Pendula
  • 29. Which dogwood variety is most tolerant of full sun conditions?
A) Kousa Dogwood
B) Flowering Dogwood
C) Silky Dogwood
D) Red Osier Dogwood
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