Celtis- hackberry

Question 1

Celtis occidentalis

Answer 1

Hackberry

Question 2

Hackberry

Answer 2

seeing more and more of these in saskatoon
can be pruned to high headed, so good for street tree, parks, private yards, etc
ornamental and not high maintenance
looks a bit like an american elm at maturity
commonly used as elm substitute in the US and eastern Canada

Question 3

Hackberry- leaf

Answer 3

quite distinctive large leaves 5-10 cm L and 2-5 cm W
ovate leaft
serrate margin except at base
often lobsided leaf base, but meet at the same point on midrib
alternate
long acuminate leaf tip

Question 4

Hackberry- buds

Answer 4

alternate buds
multiple overlapping scales
lenticels often present on new growth

Question 5

Hackberry- inflorescence

Answer 5

monoecious or polygamous
flowers small and inconspicuous
often male flowers in cluster near base of tree
often female flowers near top of tree
caterpillar like stigma

Question 6

Hackberry- fruit

Answer 6

fruit are small green (not edible) drupe
turning dark red/purple with age
hard to see fruit- it is small (4-7 mm) wide

Question 7

Hackberry- bark

Answer 7

unique bark
warty
turning brown with age

Question 8

Hackberry autumn colouration

Answer 8

yellow/golden autumn colouration