exam 2 Flashcards
moderately tolerant, fast growing, short-lived pioneer of floodplains and urban areas on wide range of substrates
Acer negundo (boxelder)
aggressively basal sprouts when main stem is cut
Acer negundo (boxelder)
most commonly occurring maple in US although rarely planted, and most geographically distributed, occurring in nearly all states and into Central America
Acer negundo (boxelder)
has many structural problems and no ornamental attributes so should not be planted as street or shade tree
Acer negundo (boxelder)
has limited commercial value beyond fire wood
Acer negundo (boxelder)
like all maples, can be tapped for syrup but inferior to sugar and black maples
Acer negundo (boxelder)
moderately tolerant, fast-growing, moderately long-lived tree on widest range of site conditions that exist in eastern U.S., from permanently flooded to dry ridges, typically not dominating anywhere although often most abundant in swamps
Acer rubrum (red maple)
a “soft” maple, producing seeds that mature in early summer and germinate without pretreatment
Acer rubrum (red maple)
prolific basal sprouter when cut or damaged
Acer rubrum (red maple)
abundance has greatly increased past few decades due to fire suppression and timber harvesting
Acer rubrum (red maple)
quality of wood varies greatly based on site conditions. Exceptional ornamental for the landscape because of its flower and fruit display (red), fall color, form, and modest stature
Acer rubrum (red maple)
intolerant to moderately tolerant, very fast-growing, short-lived but large pioneer of floodplains
Acer saccharinum (silver maple)
one of most commonly planted street trees despite its many problems (brittle wood, hollow stems, shallow root systems that heave sidewalks) and few ornamental attributes - not recommended as street tree and not allowed to be planted along streets in some communities
Acer saccharinum (silver maple)
Freeman maple (Acer xfreemanii) is a naturally occurring hybrid between red and silver maple and a good alternative for urban plantings, typically having nice fall color and not as many structural problems
Acer saccharinum (silver maple)
is a “pecan hickory” (Apocarya), a section of Carya that has fruit that are winged along fruit sutures and valvate (vs. imbricate) buds
Carya cordiformis (bitternut hickory)
the most abundant and uniformly distributed hickory, occurring on a wide ranges of sites but thriving on moist but well drained soils
Carya cordiformis (bitternut hickory)
wood an important source of lumber, pulp, and firewood and the fruit is bitter
Carya cordiformis (bitternut hickory)
moderately shade tolerant, probably lives longer than generally assumed max longevity of about 300 years
Carya ovata (Shagbark hickory)
can persist in understory for a long time but needs canopy gap to grow into maturity
Carya ovata (Shagbark hickory)
although best growth in on bottomland soils (along streams) it is the most drought tolerant carya species
Carya ovata (Shagbark hickory)
one of fastest growing hickories but still relatively slow growing
Carya ovata (Shagbark hickory)
nut important for wildlife, delicious for people, wood hard, used for tool handles and excellent for smoking food
Carya ovata (Shagbark hickory)
moderate in shade tolerance, growth rate, and longevity and tolerating wide range of soils from wet to dry, and everything in between, often on calcareous soils derived from limestone
Celtis occidentalis (Common Hackberry)
wood used for paneling, furniture, boxes and plywood. Tree planted in landscape but having limited ornamental appeal
Celtis occidentalis (Common Hackberry)