Exam 2

Question 1

Robinia pseudoacacia

Answer 1

• nitrogen fixer
• root sprouts
• important for land reclamation

Question 2

Fraxinus americana

Answer 2

• borer threatens it

- yellow disease

Question 3

Quercus rubra

Answer 3

• the most cold hardy of the red oaks in central hardwood forest
• most valuable hardwood for timber
• wood used for slack cooprage
• intermediate shade tolerance
• most site sensitive of Quercus spp

Question 4

Juglans nigra

Answer 4

• allelopathic
• site sensitive relative to growing conditions
• most valuable hardwood in this region (central hardwood)
• shade intolerant

Question 5

Platanus occidentalis

Answer 5

• long lived floodplain spp
• Anthracnose is disease
• occurs on alluvial and poorly drained sites
• one of the tallest American hardwoods

Question 6

Salix nigra

Answer 6

• reproduces by broke plant parts
• occurs with Populus deltoides on floodplains
• shade intolerant

Question 7

Quercus macrocarpa

Answer 7

• longest lived of the red and white oaks
• most drought tolerant white oak in this region
• most common oak in the prairie region

Question 8

Cornus florida

Answer 8

• Anthracnose is disease
• restricted to forest understory
• site sensitive because of shallow roots
• drought susceptible

Question 9

Quercus palustris

Answer 9

• widley planted in urban landscapes
• iron chlorosis on alkaline soils
• most abundant on wet clay flats (acorns good for waterfowl)
• tolerant of flooded conditions, poorly drained sites
• shade intolerant

Question 10

Ulmus americana

Answer 10

• two diseases threaten it (at least one kills it)
• was once the most commonly planted tree in NA
• urban tree
• mod shade tolerant

Question 11

Acer negundo

Answer 11

• greatest geographical range of any NA maple

- most likely to be tapped for syrup in Alberta, Saskatchewan and Manitoba

Question 12

Gleditsia triacanthos

Answer 12

• inermis
• root sprouts
• planted as substitute for American elm

Question 13

Tilia americana

Answer 13

• prized for its wood, nectar source, and bark for rope

- important for honey production

Question 14

Nyssa sylvatica

Answer 14

• root sucker with hollow bole used by animals

- wood was used to transport liquid

Question 15

Carya cordiformis

Answer 15

• only member of the pecan group in the north
• apocarya or pecan hickory
• shade tolerant

Question 16

Quercus alba

Answer 16

• wood has tyloses and is used for tight cooprage
• range goes into Mexico
• most valued wood comes from SW NY and NW PA
• shade tolerant when you but becomes intolerant older (mod shad tolerant)

Question 17

Liriodendron tulipifera

Answer 17

• shade intolerant, site sensitive, long lived, fast growing
• one of the largest trees in E US
• state tree of indiana, kentucky, tennessee
• very similar ecologically to Magnolia acuminata
• low seed viability due to inadequate pollination

Question 18

Acer saccharinum

Answer 18

• hybridizes with Acer rubrum which results in a better street tree
• occurs on wet sites with moving water

Question 19

Pinus rigida

Answer 19

• sprouts at the base when cut or along bole when burned
• shade intolerant
• occurs on dry, infertile, sandy sites

Question 20

Acer rubrum

Answer 20

• best maple for landscape in terms of site adaptability and ornamental attributes
• cosmopolitan spp and occurs in 54 forest cover types
• occurs in upland and wetland forests

Question 21

Diospyros virginiana

Answer 21

• root sprouts
• has darkest of American hardwoods
• delicious fruit

Question 22

Ostrya virginiana

Answer 22

• does not root sprout
• drought tolerant, occurs on dry stony soils
• shade tolerant, slow growing, sub canopy tree

Question 23

Sassafras albidum

Answer 23

• root sucker
• aromatic and durable wood
• dried leaves used for gumbo fires

Question 24

Juniperus virginiana

Answer 24

• most widespread conifer in this section
• intolerant pioneer on dry, infertile, old fields
• alternate host to rust disease

Question 25

Carya ovata

Answer 25

• most aggressive hickory on xeric (dry) sites

- one of the fastest growing hickories

Question 26

Prunus serotina

Answer 26

• gap spp
• best wood is in SW NY and NW PA
• mod shade tolerant
• does not root sprout

Question 27

Quercus velutina

Answer 27

• most tolerant of dry (drought) conditions in red oaks

- hybridized with other red oaks

Question 28

Populus deltoides

Answer 28

• most similar ecologically to Salix nigra
• fastest growing tree in NA
• one of the tallest hardwoods in NA

Question 29

Juglans cinerea

Answer 29

• of the Juglans spp, being devastated by a fungus caused canker disease
• most site sensitive Juglans spp

Question 30

Magnolia acuminatat

Answer 30

• intolerant, fast growing pioneer in S and central Appalachians
• best growth on cove sites
• most cold hardy of the tree size magnolias native to US

Question 31

Celtis occidentalis

Answer 31

• intermediate to tolerant in shade
• moderate life span and growth
• drought resistant and tolerant of a wide range of soil
• frequently occurs on limestone soils