Roundleaf serviceberry

Leaves

Form

• Deciduous, alternate, simple
• Elliptic to round
• Hairless at maturity
• Veins tend to be straight and parallel, 10–12 per side

Length

• 3–7 cm

Margin

• Coarsely toothed, about 18–20 per side
• Mostly toothless toward the petiole
• Each vein ends in a tooth

Petiole

• Slender

Buds

Form

• Narrowly ovoid
• Twisted, tapering to a point
• Pressed tightly against the twig
• About 5 scales
• Terminal bud much like the lateral buds
• Leaf scars with 3 large vein scars

Length

• 8–12 mm

Twigs

Form

• Slender
• Ridges extend down from either side of the leaf scar
• Pith 5-pointed
• A neoformed shoot usually develops from one or more leaf axils below a terminal flower cluster

Colour

• Reddish when young

Flowers

Form

• Showy; 5 petals
• In drooping clusters at the tips of new leafy shoots
• Insect-pollinated

Length

• Lower stalks longer than the upper ones
• Clusters 3–8 cm
• Petals 10–15 mm

Colour

• White

Structure

• Synoecious

Floral timing

• With the unfolding leaves, which are densely hairy at this time

Fruits

Form

• Berry-like, with 5–10 hard seeds
• Juicy

Length

• Stalks 10–30 mm

Width

• 5–10 mm

Colour

• Dark purple

Timing

• Ripening in late July or early August

Seeds

Form

• Remain viable for some years at near-freezing temperatures
• Germinate after exposure to moist cool conditions

Seedlings

Form

• Cotyledons small, leafy
• Raised above the surface during germination

Bark

Form

• Smooth, conspicuously marked by a slightly twisted network of darker vertical lines
• With age becoming rough and scaly

Colour

• Grey

Size

Height

• To 10 m

Diameter

• To 20 cm

Tree form

Forest-grown

Trunk

• Slender, very little taper

Crown

• Narrow, irregular

Habitat

Site

• In the forest understory, at forest edges, on sand plains and rocky outcrops, and along fencerows

Range

Lake Superior eastward