Winter Twigs Exam 2

Question 1

What tree species in genus

JUGLANS?

Answer 1

WALNUT

• family Hippocastanaceae
• tree produces walnuts that provide food for humans and animals, healthy omega-3 oil
• hardwood used for furniture making

Question 2

What tree is in the genus BETULA?

Answer 2

BIRCH

• wood used for cabinets and wood trim in homes
• firewood
• family BETULACEAE
• sap used to make wine, beer and table syrup

Question 3

What tree is in the QUERCUS family?

Answer 3

OAK

• family Fagaceae
• mushrooms are symbiotic with oak trees
• very hardwood used for furniture
• wood barrels for aging wine
• oak bark tannins used to tan leather
• spirally arranged leaves with lobate margins

Question 4

What tree is in the genus ROBINIA?

Answer 4

Black Locust

• family Fagaceae
• INVASIVE SPECIES
• alternate, pinnately compound leaves
• sharp thorns at leaf base

Question 5

What tree is in genus ZANTHOXYLUM?

Answer 5

PRICKLY ASH

• family RUTACEAEA
• bark and berries used to make medicine
• wood NOT valuable
• fragrant shrub or small tree
• compound leaves with egg-shaped leaflets and prickly leafstalks

Question 6

ACER RUBRUM genus includes what tree?

Answer 6

RED MAPLE

• family Sapindaceae
• wildlife uses trees for food, shade and nesting
• wood used for building
• leaves with pointed lobes and serrated edges

Question 7

ACER SACCHARUM is the genus for what tree?

Answer 7

SUGAR MAPLE

• family Sapindaceae
• maple syrup
• highly adaptable to poor soil or draught conditions
• less adaptabke to air pollution
• animals eat trees seeds, leaves and buds
• wood used fir building

Question 8

ACER NEGUNDO is the grnus for which tree?

Answer 8

BOX-ELDER

• family Sapindaceae
• opposite compound leaves
• pinnately compound leaves
• animals and burds eat seeds
• a PROTOXIN in the seeds causes an equine neurological disease (SPM)
• the tree pollen is a severe allergen

Question 9

TILIA is the genus for what tree?

Answer 9

BASSWOOD, LINDEN

• family Malvaceae
• asymmetrical and lopsided heart shaped leaves
• soft wood used for carving
• flowers nectar to make honey (bee tree)

Question 10

FRAXINUS is the genus of what tree?

Answer 10

ASH

• family Oleaceae
• wood harder than OAK
• used in bats, hockey sticks, oars, doors, furniture, floors
• leaves opposite and pinnately compound
• ecology: leaves important food source for frogs, ducks, deer, caterpillars, birds

Question 11

LONICERA is the genus for what tree?

Answer 11

HONEYSUCKLE

• familiy Caprifoliaceae
• bush with beautiful flowers
• toxic and invasive varieties (Japanese) but not native varieties
• attract pollenators
• smell really good

Question 12

RHSMNUS CATHARTICA is the genus for what woody shrub or small tree?

Answer 12

COMMON BUCKTHORN

• family Rhamnaceae
• invasive, out compete other plants for nutrients and emits poison into soil
• berries, bark and roots are TOXIC
• winter is a good time to remove buckthorn because leaves remain green and easy to spot