Twice-Leaved Blackberry

rubus bifrons

The Twice-Leaved Blackberry (Rubus bifrons) is a vigorous, sprawling perennial shrub known for its arching canes and tasty, deep-purple to black fruits. Native to Europe but naturalized in many temperate regions worldwide, this resilient plant thrives in disturbed environments, forming dense, thorny thickets. These thickets provide excellent cover and nesting sites for small birds and mammals, though the plant's aggressive growth can sometimes overwhelm native vegetation. During the warm months, its showy blossoms serve as a rich nectar source for a variety of native pollinators, cementing its role as a key wildlife supporter.

生息地: Typically found in disturbed sites, forest edges, riparian zones, old fields, and along roadsides in moist, well-drained soils.

外見

This robust bramble features stout, arching canes that typically reach lengths of 1 to 6 meters, heavily armed with sharp, backward-curved prickles. Its palmately compound leaves are uniquely two-toned, displaying a smooth, dark green surface on top and a contrasting, felt-like, grayish-white underside. In late spring and summer, it produces clusters of five-petaled flowers ranging from white to light pink, which eventually develop into clusters of glossy, aggregate drupelets that turn black when fully ripe.

界Plantae門Tracheophyta綱Magnoliopsida目Rosales科Rosaceae属Rubus

Twice-Leaved Blackberry

カテゴリ

植物

レア度

Common

危険度

1/5 · 非常に低い

スナップ

最初にスナップしよう！

おもしろい事実

A single mature thicket of these blackberries can generate thousands of seeds annually, which can remain dormant in the soil for several years waiting for sunlight.

Historically, dense, thorny brambles like this species were purposefully planted around homesteads to serve as organic, impenetrable security fences.

The species name 'bifrons' literally translates to 'two-faced' or 'two-fronted,' describing the starkly contrasting dark green and bright white sides of its leaves.

特殊能力

The dense white hairs on the leaf undersides reflect excess solar radiation and reduce water loss through transpiration during hot days.

When the tips of its long, arching canes touch moist soil, they can quickly generate roots to establish new, independent clonal plants.

Sharp, downward-curving prickles prevent herbivores from easily feeding on the foliage and assist the canes in climbing over surrounding vegetation.

サイズと詳細

長さ: 100-600 cm
体重: 1-15 kg
寿命: 5-25 年

食性と食事

This plant produces its own organic compounds using sunlight, water, and carbon dioxide through photosynthesis, while absorbing key minerals through its root system.

主な食物

Sunlight
Water
Carbon dioxide
Soil nitrogen
Phosphorus

生態系とのつながり

mutualism

Western Honey Bee

Apis mellifera

The flowers provide an abundant source of nectar and pollen for foraging honey bees in exchange for pollination.

eaten by

American Robin

Turdus migratorius

The ripe blackberries are eaten by robins, which then disperse the seeds throughout the landscape.

parasite

Raspberry Cane Borer

Oberea bimaculata

Larvae of this beetle tunnel into the woody canes, feeding on the pith and weakening the stalks.

特徴

このオブジェクトにはまだ特徴バッジが割り当てられていません。

別名

Himalayan Blackberry

コレクション

テーマが追加されると、このオブジェクトのコレクションがここに表示されます。

安全性

危険度

1/5 · 非常に低い

まだ特別な安全上の注意はありません。

よくある質問

Twice-Leaved Blackberryを見分けるには？

Twice-Leaved Blackberryを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。

Twice-Leaved Blackberryの長さは何ですか？

100-600 cm

Twice-Leaved Blackberryの体重は何ですか？

1-15 kg

Twice-Leaved Blackberryの寿命は何ですか？

5-25 年

Twice-Leaved Blackberryは何を食べますか？

This plant produces its own organic compounds using sunlight, water, and carbon dioxide through photosynthesis, while absorbing key minerals through its root system.

Twice-Leaved Blackberryは通常どこに生息していますか？

Typically found in disturbed sites, forest edges, riparian zones, old fields, and along roadsides in moist, well-drained soils.