How to identify Cutleaf evergreen blackberry (Rubus laciniatus)

How to identify Cutleaf evergreen blackberry (Rubus laciniatus)

Cutleaf evergreen blackberry, also known as Cutleaf blackberry, Parsley-leaved bramble, European blackberry, Laciniate blackberry

Cutleaf evergreen blackberry is characterized by its thorny or bristly stems and compound leaves. The plant produces flowers and fruit on the canes from the previous season, rather than on new shoots. This trait is particularly important when pruning, to avoid cutting canes that will bear fruit in the following season. Cutleaf evergreen blackberry can exhibit varied growth habits, either standing as an erect or arching shrub up to 8 feet (2.4 meters) tall or trailing on the ground like vines. Its fruiting time can vary, with some species in the genus producing fruit in spring while others bear fruit during summer.

Lifespan: Perennial

Plant Type: Vine, Shrub

Leaf Type: Deciduous

Quickly Identify Cutleaf evergreen blackberry

White star-like flowers with yellow stamens, 1 inch (2.5 cm) in diameter.

Thorny stems bear fruit on previous season's canes, up to 8 feet (2.4 meters) tall.

Aggregate berries transition from red to black, .75 inch (1.9 cm) diameter.

Bright green leaves with 3-5 toothed leaflets, 2-4 inches (5-10 cm) long.

Reddish prickly stems, recurved, several feet (over a meter) in length.

Detailed Traits of Cutleaf evergreen blackberry

Leaf Features

The leaves of cutleaf evergreen blackberry are bright green above and pale hairy below. They are typically composed of 3 to 5 leaflets, each with toothed margins. The leaflets are oblong to lanceolate in shape, measuring about 2 to 4 inches (5 to 10 cm) in length. The texture is slightly rough on top and softer underneath. The vein pattern is prominent, with a central primary vein and several lateral veins. These features make the leaves easily identifiable.

Learn About the Leaf Glossary

Flower Features

The flowers of cutleaf evergreen blackberry are distinctive and recognizable by their five white petals. Each flower is typically about 1 inch (2.5 cm) in diameter. The petals are arranged in a radial pattern, creating a delicate, star-like appearance. They bloom from April to August and emit a subtle, pleasant scent. The central part of the flower features numerous yellow stamens, adding a touch of contrast to the predominantly white bloom. These flowers are crucial identifiers for cutleaf evergreen blackberry.

Learn About the Flower Glossary

Stem Features

The stem of cutleaf evergreen blackberry is characterized by its reddish hue and covered with recurved prickles. Biennial in nature, these stems emerge from a perennial rootstock and typically begin upright, later arching and touching the ground. The stems can measure several feet (or over a meter) in length. Their prickly, reddish texture is a standout feature, making them easily identifiable.

Learn About the Stem Glossary

Fruit Features

The fruit of cutleaf evergreen blackberry is a striking example of aggregate berries, beginning as vibrant red drupelets when immature and transitioning to a deep black upon maturation. Each globe-shaped berry is approximately .75 inch (1.9 cm) in diameter, offering a distinctive size comparison. The consummate blend of drupelets forms an intricate, multi-faceted surface texture, which is typically seen ripening from August to September. These fruits are borne on biennial stems which bear fruit in their second year before dying back.

Learn About the Fruit Glossary

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