Rubus acer

L. H. Bailey

Long's Blackberry

RosaceaeFruit
⚠ Dangerous Lookalikes — Has a deadly poisonous lookalike — see comparison below
Rubus acer
iNaturalist · cc-by-nc
(c) Sue Zucker-Scharff, some rights reserved (CC BY-NC), uploaded by Sue Zucker-Scharff
Rubus acer
iNaturalist · cc-by-nc
(c) Sue Zucker-Scharff, some rights reserved (CC BY-NC), uploaded by Sue Zucker-Scharff
Rubus acer
iNaturalist · cc-by-nc
(c) Sue Zucker-Scharff, some rights reserved (CC BY-NC), uploaded by Sue Zucker-Scharff

What to Eat

Edible parts: Fruit

The fruit can be eaten raw or cooked and is possibly edible — it is certainly not poisonous.

Dangerous Lookalikes

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

DEADLY
Red Baneberry
Red Baneberry
Actaea rubra
SAFE
Rubus acer
Long's Blackberry
Rubus acer
Actaea rubra
Actaea rubra
Rubus acer
Rubus acer

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

Long's Blackberry: Thorny woody canes (brambles), aggregate berry made of many drupelets, berries pull easily from receptacle.

Where to Find It

It is a temperate plant.

North America, USA,

Countries: Antigua & Barbuda, Barbados, Bahamas, Belize, Canada, Costa Rica, Cuba, Dominica, Dominican Republic, Grenada, Guatemala, Honduras, Haiti, Jamaica, St Kitts & Nevis, St Lucia, Mexico, Nicaragua, Panama, Puerto Rico, El Salvador, Trinidad & Tobago, United States, St Vincent

How to Identify

A deciduous shrub reaching 1.2 m tall with hermaphroditic flowers pollinated by insects. Suitable for light sandy, medium loamy, or heavy clay soils with well-drained conditions and mildly acidic to basic pH. Tolerates semi-shade or full sun and prefers moist soil.

How to Grow

We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. The following notes are based on the general needs of the genus. Easily grown in a good well-drained loamy soil in sun or semi-shade. Plants in this genus are notably susceptible to honey fungus.

Propagation: Seed requires stratification and is best sown in early autumn in a cold frame. Stored seed needs 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 in July, planting out in autumn. Division can be done in early spring or just before leaf-fall in autumn.

Medicinal Uses

None known.

Other Uses

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

Wikipedia

Source ↗

A deciduous shrub reaching 1.2 m tall with hermaphroditic flowers pollinated by insects. Suitable for light sandy, medium loamy, or heavy clay soils with well-drained conditions and mildly acidic to basic pH. Tolerates semi-shade or full sun and prefers moist soil.

Notes

There are about 700 Rubus species.

References (1)
  • Mansfield's Encyclopedia of Agricultural and Horticultural Crops p 433

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