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Rubus invisus

(L. H. Bailey) Britton

Upland Dewberry

Has a deadly poisonous lookalike — see comparison below

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(c) Daniel J. Layton, some rights reserved (CC BY), uploaded by Daniel J. Layton

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(c) Levi smith, some rights reserved (CC BY-NC)

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Rubus invisus is a species of dewberry, known as upland dewberry. Like other dewberries, it is a species of flowering plant in the rose family, related to the blackberry. It is found in the eastern and east-central United States.

Description

A small trailing shrub. The stems lie along the surface of the ground. It forms mats. Leaves are large and have coarse teeth. The flowers and fruit are on long stems.

Edible Uses

The fruit can be eaten raw or cooked.

Traditional Uses

The fruit are eaten raw or cooked.

This uses section is brief — help expand it

Medicinal Uses

None known

Distribution

It is a temperate plant. It grows in rocky soils and shade.

Where It Grows

Canada, North America, USA,

Propagation

Seed requires stratification and is best sown in early autumn in a cold frame. Stored seed requires one month stratification at about 3°c and should be sown as early as possible in the year. Prick out seedlings when large enough to handle and grow on in a cold frame, then plant out into permanent positions in late spring of the following year. Cuttings of half-ripe wood can be taken in July/August in a frame. Tip layering can be done in July, with plants set out in autumn. Division is possible in early spring or just before leaf-fall in autumn.

Other Uses

A purple to dull blue dye is obtained from the fruit.

Notes

There are about 250 Rubus species.

Dangerous Lookalikes

This plant can be confused with the following toxic species. Always verify identification carefully before consuming any wild plant.

DEADLY

Red Baneberry

Actaea rubra

Walter Siegmund (talk)

Safe

Upland Dewberry

Rubus invisus

(c) Daniel J. Layton, some rights reserved (CC BY), uploaded by Daniel J. Layton

Red Baneberry: Short herbaceous plant (no thorns), berries on thick red stems, each berry has a single seed, compound sharply-toothed leaves.

Upland Dewberry: Thorny woody canes (brambles), aggregate berry made of many drupelets, berries pull easily from receptacle.

References (1)

  • Plants for a Future database, The Field, Penpol, Lostwithiel, Cornwall, PL22 0NG, UK. http://www.scs.leeds.ac.uk/pfaf/

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