Freeman maple - KPU Plant DB

Scientific Name:

Acer x freemanii

Pronunciation:

AY-sur ex free-MUN-ee-eye

Common Name:

Freeman maple, columnar red maple

Family Name:

Sapindaceae

Plant Type:

Tree - deciduous

Key ID Features:

Leaves opposite, orbicular, most 9-13cm wide, base trucate-hastate, coarsely toothed, pale underneath, 3-5 palmate lobes (sinuses are deeper than red maple but not as deep as silver maple), petoles mostly 8-16cm long. Winter ID: lateral buds opposite, 2-3mm long, two outer red scales.

Habit:

Upright

Form:

Oval - vertical

Texture:

Medium - coarse

Mature Height:

10 - 15m

Mature Spread:

4 - 5m

Growth Rate:

Fast

Origin:

Garden origin, North America (A. rubrum x A. saccharinum - freely hybridizes in nature where ranges overlap)

Hardiness Rating:

Zone 4: (-34 to -29 °C)

Exposure:

Full sun

Soil/Growing Medium:

Well-drained

Landscape Uses:

Fall interest, Street (boulevard tree)

Additional Info:

Google. Cultivars shown or on campus may include A. 'Armstrong' (columnar) and A. 'Jeffsred' (Autumn Blaze).

Leaf Morphology:

Glossary

Form:

Simple, Lobed

Arrangement:

Opposite

Texture/Venation:

Soft flexible, Palmate venation

Surfaces:

Glabrous

Colour in Fall:

Orange, Red

Shapes:

Orbicular

Apices:

Acute

Bases:

Hastate, Truncate

Margins:

Dentate, Double serrate, Pinnately lobed

Additional Info:

Spectacular fall colour

Inflorescence Type:

Umbel

Flower Morphology:

Flowers perfect

Number Of Petals:

5

Corolla Shape:

Rotate/stellate

Colour (petals):

Not showy, Pink, Red

Flower Time at Peak:

Apr

Additional Info:

Flowering rarely seen

Fruit Type:

Samara, Schizocarp, Aborted (hybrids) or absent

Fruit Colour:

Red, Brown

Fruiting Time:

May, Jun

Additional Info:

Fruit insignificant, Some cultivars are seedless while others form schizocarps thick margin of wings at 60-70 degree angle, split into samara-like mericarps after dispersal; seeds sterile