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