Acer- maple Flashcards
Acer
maple
Acer- characteristics
large shallow rooted deciduous trees, shrubs or shrub-like trees
Leaves are opposite, plamately lobed and simple
flowers are imperfect and can be monoecious or dioecious depending on the species
Acer negundo
manitoba maple
manitoba maple- characteristics
single or multi-trunked
wide spreading
often as wide or wider than as tall
native eastern Sask
hardy, tolerates varoius soils and growing conditions
common street and park tree
PFRA shelterbelt tree
Manitoba maple- buds
glaucous new stems
opposite buds- often covered with white bloom
terminal buds much larger than axillary buds
internode space can be large on seedlings
Glaucous
greyish blue waxy coating on plants that can be rubbed off
Manitoba Maple- leaves
compound, odd pinnate
3-7 leaflets
3-5 is most common
the only maple with compound leaves; all other have simple leaves
margins vary from almost entire to sparsely serrate
Manitoba Maple- seeds
seeds are paired and same size
samaras, pairs, equal size
wing longer than seed
Manitoba Maple- dioecious
female flowers; lack colour- not showy
male flowers- reddish, therefore more noticeable
Manitoba Maple- autumn colouration
moslty golden yellow but can have tones of red or purple
Manitoba Maple- insects
Often attract aphids which secrete sticky honeydew on area below the tree; not recommended near decks, patios, driveways, etc.
attracts box elder bug; nuisance bug as they want to overwinter in homes; amass in autumn in hot locations; not harmful to tree
Acer saccharinum
Silver Maple
Silver maple- characteristics
monoecious
under side of leaf is silver
top side of leaf is shiny, often lighter green
Big tree
one of the largest trees (height) in Sask
Silver maple- buds
opposite buds- multiple buds at node
stems and buds not glaucous
new growth reddish with white lenticels
older growth brown
Silver maple- seeds
largest samara of acer genus
shed in spring
equal size; 5 cm long
seeds will germinate as soon as they are shed vs other acer germinate the following spring
Silver maple- bark
new bark very silvery and smooth
older bark beginning to furrow
lines in bark
Silver maple- autumn colouration
mostly yellow but can be red/reddish
Acer tataricum
Tatarian maple
Tatarian maple- leaves
3 lobed
readily hybridized with Ginnala maple
similar in shape/size to Ginnala
lobes are not as distinct
Acer tataricum ssp ginnala
Ginnala maple
Ginnala maple- leaves
3 lobed
palmately veined (3 major veins)
central lobe often much longer than other lobes
lobes distinct
opposite leaf arrangement
long petioles
Tatarian Maple- seeds
red seed pods quite ornamental
Ginnala maple - seeds
samaras
seed pairs- one seed often smaller than the other
look like little crab claws
Tatarian maple- bark
same as ginnala maple
lines on bark
Tatarian maple- autumn colouration
usually a yellow autumn colouration
Ginnala maple- autumn
burgundy autumn colouration is common, as is red
can be yellow
Acer saccharum
Sugar maple
Sugar maple- characteristics
reportedly one cultivar is hardy for zone 3/4
will find examples in saskatoon, but will also often see winter kill
Sugar maple-leaves
Canadian emblem
quite different than silver maple
autumn colouration brilliant redS
Sugar maple- bark
new bark quite silver
Acer plantanoides
Norway maple
Norway maple- characteristics
will find examples in saskatoon, but will also often see winter kill
beautiful large trees
