1 Flashcards
which trees leaf earliest?
willow, maple.
which trees leaf out last?
sycamore , black cherry, black locust.
which trees have simple, lobed leaves?
MOST : Maple, Oak, Sycamore, Tulip tree. ( also, Sassafras)
which trees smell of wintergreen?
Yellow birch and Black birch. ̚ 𐡛
how do fir needles and spruce needles compare?
FIR: blunt tip, underside is pale.
SPRUCE: square cross-section, sharp tip, on pegs. (Square, Sharp, Stand on pegs)
what distinguishes Grey Birch?
Black triangles on trunk.
chalky bark, non-peeling.
Birches are pioneer trees.
which conifers have upright cones?
FLaC: Fir, Larch, Cedar.
which conifers have pendant cones?
SHeD: Spruce, Hemlock, Doug Fir.
which genera are in the Pine family?
Pine. Pinus
True Cedar. Cedrus
Larch. Larix.
Hemlock. Tsuga.
Spruce. Picea
Douglas Fir. Pseudotsuga
Fir. Abies.
which Pine family genera have clustered needles?
Pine, Cedar, Larch.
which is the dominant conifer in the N American taiga?
Spruce.
which conifer is a pioneer?
White Pine.
what tree is this leaf from?
Tulip tree.
what tree is this from, and what is the leaf morphology?
White Ash.
the leaves are compound (made of multiple leaflets) and pinnate (leaflets arising on either side of the rachis).
How do you distinguish a simple leaf from a compound one? that is, how is a leaf and a leaflet different?
A simple leaf attaches directly to the twig and is undivided. A compound leaf is divided into several leaflets coming off a common axis (stem) or all originating at a single point. Sometimes it may be difficult to decide which it is. Look at the lateral buds, found at the base of the leaf, where the leaf petiole (stem) meets the branch. A simple leaf will have a bud at the base of each leaf. A compound leaf will have a bud at the base of each overall leaf but not at the base of each leaflet. (Ehrenreich )
which CT trees have compound, pinnate leaves?
Ash. Boxelder. Hickory. Butternut. Black walnut. Ailanthus. Black locust. Sumac.
LAWS? BAH! (Black Locust, White Ash, Black Walnut, Sumac, Butternut, Ailanthus, Hickory).
More simply: Ash, Walnut, Hickory, Locust, Ailanthus.
which two genera are in the Walnut family?
Walnut and Hickory.
what tree?
Ash.
what tree?
box elder.
which tree?
black walnut.
which tree types are most difficult to distinguish based on leaf characteristics only?
which other leaf features should be examined?
those trees with simple, alternately arranged, unlobed leaves. besides leaf shape, examine the leaf edges.
Which four broadleaf trees often retain dead foliage in winter?
oak. beech. Hophornbeam. Hornbeam.
How do Red Maple and Sugar Maple bark differ?
As a general rule, if you try to peel the bark of a red maple, you will find it comes off easily, but sugar maple bark is rigid and does not come off, even if it looks like it is peeling (Figure 3.2). Bull’s-eyes sometimes appear in red maple bark but never in sugar maples. (Mikolas)
What are two key growth features of Beech?
They can grow in a shaded wood until eventually they begin shading out other species themselves, resulting in what is called a “climax forest”—a forest that will remain as is until some outside force, such as storms, fire, or logging, destroys it.
Beech can reproduce via shoots arising from roots. Hence, beech often are found in clusters sharing one root system.