Herbariuma Backpackers project
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Mediterranean buckthorn

Rhamnus alaternus

Family · Rhamnaceae · Irritating

Toxic
Mediterranean buckthorn (Rhamnus alaternus)Mediterranean buckthorn (Rhamnus alaternus)
Hectonichus, CC BY-SA 3.0 · Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0

The glossy evergreen shrub that fills hedges and rocky slopes in the south, with berries turning from red to black in summer. It feeds a lot of birds and no people.

Where it grows

Scrubland · Oak woods · Walls and rocks · Montado

Also known as

Italian buckthorn

In flower
In fruit

How to tell it

Alternate, leathery, dark glossy leaves with a finely toothed margin. Tiny yellow flowers in late winter, with no visible petals. Small berries, red then black.

What it is confused with

Mastic tree

Pistacia lentiscus

Harmless confusion

They share the scrub and the dark berries. Mastic tree has a compound leaf with several leaflets and smells of resin; buckthorn has a simple leaf and no smell.

What it is for

None as food: the berries are strong purgatives, as in the whole family. The hard wood served for small pieces and the bark gave a yellow dye.

Where it occurs

Iberian Peninsula

Each square is an area with recorded observations of this plant. The lighter background is the set of areas where any of the entries has been observed, and serves as a reference. Note what this is not: it is not where the plant lives, it is where people record it, so trails and towns always look fuller than the mountains. Data from GBIF.

Sources

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