NAME
(Please print) _____________________
There
are 200 possible points, 46 questions and 9 pages on this exam. You will have
50 minutes to complete this exam. Unless
otherwise noted, plants are grown in
1.
(15 points) Fill in the chart.
USDA Plant Cold
Hardiness Zone
|
Average Annual minimum
winter temperature |
|
|
< -50°F |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
15 |
|
2.
(3 points) What are the three USDA Zones are found in the state of
3.
(12 points) Draw both an odd-pinnate and a bipinnate compound leaf. For each,
give an example of a tree that has this type of leaf.
4. (5
points) Can a plant that is native to
5.
(6 points) For consistent flowering, where might it be better to plant Magnolia stellata: on the north
side of a building or on the south side of the same building? Explain your
answer.
6. (6 points) Define provenance. How might
provenance affect the use of Acer rubrum
in the landscape?
7. (6 points) How would installing only Viburnum dilatatum ‘Catskill’ affect the
fruiting potential of this particular planting? What should be done instead?
8.
(6 points) Wee-no-nothing Landscapes is creating a shrub border for a client in
Zone 4. The site is full sun and irrigated. The client wants a sequence of
bloom. The company installed the following shrubs:
Vitex agnus-castus,
Lagerstroemia indica, Hydrangea paniculata, Viburnum×juddii.
9.
(5 points) What five characteristics should you keep in mind when selecting an
ornamental flowering tree?
Multiple choice questions
are worth 3 points each.
10.
____ Pruning Buddleja davidii to the
ground in late winter (February)
A. prevents flowering from
occurring that summer.
B. increases the likelihood of
winter injury to the plant.
C. reduces plant size and
slightly delays flowering that summer.
D. kills the plant.
E. None of the above.
11.
_____ The pistil is best described as
A. the calyx and corolla.
B. the stigma, style and ovary.
D. the anther and the filament.
12.
_____Monoecious trees
A. have male flowers on one
tree and female flowers on another tree.
B. have separate male and
female flowers on the same tree.
C. do not flower.
D. have perfect flowers.
E. None of the above.
13.
_____ Fireblight typically affects members of this plant family.
A. Styracaceae
B. Rosaceae
C. Fagaceae
D. Betulaceae
E. None of these families.
14.
_____ Due to its mature size, this maple is desirable for smaller properties.
A. Acer buergerianum
B. Acer saccharinum
C. Acer platanoides
D. Acer negundo
E. Acer saccharum
15.
______ Fall foliage color is an echo of the color of the late winter flowers.
A. Acer tataricum ssp. ginnala
B. Acer rubrum
C. Acer negundo
D. Acer buergerianum
E. Acer platanoides
16.
_____ The parents of Acer ´freemanii are Acer saccharinum and this species.
A. Acer saccharum
B. Acer platanoides
C. Acer negundo
D. Acer rubrum
E. Acer tataricum ssp. ginnala
17. _____ The purple foliage color found on Prunus cerasifera cultivars
A. is maintained throughout the
summer.
B. is a symptom of a disease.
C. slowly fades as the summer
progresses.
D. means the plant is an
evergreen.
E. None of the above.
18.
_____ Invasive plants do all the following EXCEPT:
A. They exclude native plants.
B. They promote faunal change.
C. They increase biological
diversity.
D. They alter natural plant
communities.
E. None of the above.
19.
_____ The shrub that is first to flower in the calendar year is
A. Viburnum rufidulum
B. Viburnum prunifolium
C. Viburnum dilatatum
D. Viburnum nudum
E. Viburnum ´burkwoodii
20.
_____ On these two viburnums, both sterile and fertile flowers are found on the
same inflorescence.
A. Viburnum plicatum var. plicatum and V. ×rhytidophylloides
B. Viburnum nudum and V. ×juddii
C. Viburnum בConoy’ and V. ×burkwoodii
D. Viburnum prunifolium and Viburnum
rufidulum
E. Viburnum plicatum var. plicatum and Viburnum opulus
21.
_____ The correct sequence of bloom for the following trees (for each choice,
the first tree given is the first to flower in the calendar year).
A. Prunus cerasifera, Tilia
cordata, , Cornus
kousa, Cornus florida, Sophora japonica
B. Prunus cerasifera, Cornus kousa, , Cornus florida, Sophora japonica, Tilia cordata
C. Prunus cerasifera, Cornus florida, Cornus kousa, Tilia cordata, Sophora
japonica
D. Cornus florida, Prunus cerasifera, Cornus kousa, Tilia cordata, Sophora
japonica
E.
Prunus cerasifera, Cornus kousa, Cornus florida,
Tilia cordata, Sophora japonica
22.
_____ All of these are correct about Acer
EXCEPT:
A. The leaves
are alternate on the stem.
B. The fruit
is a samara.
C. The leaves
can be either simple or compound.
D. Species
are found in
E. None of
the above is correct.
23.
_____ All of these are correct about Quercus
alba EXCEPT:
A. Lobes on the leaves are
rounded.
B. The acorns mature in one year.
C. The tree is
intolerant of soil compaction and soil disturbance.
D. The tree is native to
E. All of the above are
correct.
24.
_____Abelia ×grandiflora, Ceanothus ×delilianus, and Lagerstroemia indica have what in common?
A. All grow into small trees
with attractive exfoliating bark.
B. The leaves on all three are
arranged in an opposite fashion on the stem.
C. They flower on old wood.
D. They flower over a long
period of time in the summer.
E. None of the above.
25.
_____Styrax japonicum, Halesia tetraptera, and Sinojackia xylocarpa have what in
common?
A. They all flower at the same
time in the calendar year.
B. They all have pink flowers.
C. They are all in the family
Styracaceae.
D. All flower on bare stems
before the foliage emerges.
E. None of the above.
26. _____Platanus
occidentalis, Quercus palustris,
and Betula nigra
A. are all monoecious
B. are native to dry regions
(like hillsides).
C. are all noted for their fall
foliage color.
D. are all dioecious.
E. None of the above.
27.
_____Compared to the others, this shrub flowers for the shortest period of time
in the calendar year.
A. Rhus chinensis
B. Ceanothus ×delilianus
C. Lagerstroemia indica
D.
Hibiscus syriacus
E. Abelia ×grandiflora
28.
_____ Acorns on this oak take two years to mature.
A. Quercus alba
B.
Quercus robur
C.
Quercus stellata
D.
Quercus acutissima
E. Quercus macrocarpa
True or false. Indicate whether the following statements are
true or false. If a statement is false,
briefly indicate why it is false. (3 points each).
29. T or
F A long life cycle is typical
for a plant considered invasive.
30. T or F No
matter where it is grown, an invasive plant will always be invasive.
31. T or F Invasive
plants reproduce both by seed and vegetative means.
32. T or F An
example of an intergeneric hybrid is ×Chitalpa
tashkentensis.
33. T or
F The alternate host for
fireblight is an Asiatic crab apple.
34. T or
F Viburnum leaf beetles attack Viburnum
species in
35. T or
F Tilia cordata is a favorite plant of Japanese beetles.
36. T or
F Acer saccharum is weak-wooded, shallow-rooted and tends to break up
in ice storms.
37. T or
F Calcareous soils have an acidic
pH.
38. T or
F A pH below 7 is considered
acidic.
39. T or
F On a compound leaf, the petiole
connects the rachis to the stem.
40. T or
F Anthracnose is a disease
occurring on Plantanus occidentalis..
41.
T or
F The showy parts of the dogwood “flower” are the sepals.
42. (14 points) Define the following terms (2
points each)
calyx
corolla
perianth
samara
superposed
cauliflory
fastigiate
43.
(4 points) Draw an obcordate leaf.
44.
(4 points) In Fayetteville, why might Ulmus
parvifolia be a better shade tree than Ulmus
45.
(6 points) List three of the natural regions that occur in
46.
(12 points) Match the plant with the description.
_____
Exfoliating bark, especially on the cultivar ‘Heritage’, provides winter
interest with this native tree.
_____
In northern zones, this tree does not fruit, which is a benefit, since the nuts
are a significant litter problem.
_____
Mildew is a problem on the leaves of the commonly-grown, fastigiate form of
this tree.
_____
This member of the Fabaceae has a tendency to sucker. Despite hard wood, borers can be a problem.
A. Quercus
rubra E. Gymnocladus dioica
B. Robinia
pseudoacacia F. Carpinus caroliniana
C. Acer griseum
G. Betula
nigra
D. Carya
illinoinensis H. Ostrya virginiana
I. Quercus robur