Black hawthorn buckthorn
Rhamnus lycioides
Family · Rhamnaceae · Irritating


The rigid, thorn-filled shrub that closes the dry scrub of the southeast, with tiny leaves and branches that all end in a point. It is the plant that makes a dry slope impassable.
Scrubland · Walls and rocks · Montado · Uplands
Also known asMediterranean buckthorn
How to tell it
Grey, rigid branches set almost at right angles and ending in a spine. Very small, narrow leaves grouped in tufts. Small fruits turning from red to black.
What it is confused with
Mediterranean buckthorn
Rhamnus alaternus
Same family, both with dark berries. Italian buckthorn has a broad glossy leaf and no thorns; this one is all thorns with a tiny leaf. Neither is eaten.
What it is for
None as food: as in the whole family, the fruits are strong purgatives. It served as a living hedge and firewood, and southern birds depend on it heavily in late summer.
Where it occurs
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
Community
No approved contributions for this entry yet.
Nothing appears here without a person reading it first. Contributions do not replace the entry or its warnings: until a botanist confirms, what is written above stands.