Buckthorn

Black berries on a branch with leaves, on thorn bush in the family Rhamnaceae

Rhamnus cathartica

Synonyms:
Purging Buckthorn
Rhamnus_cathartica (Wikipedia)

Rhamnus cathartica
Illustration of Rhamnus catharticus 63-cropped.png
Scientific classification edit
Kingdom:Plantae
Clade:Tracheophytes
Clade:Angiosperms
Clade:Eudicots
Clade:Rosids
Order:Rosales
Family:Rhamnaceae
Genus:Rhamnus
Species:
R. cathartica
Binomial name
Rhamnus cathartica
Synonyms

Cervispina cathartica (L.) Moench

Fruit

Rhamnus cathartica, the European buckthorn, common buckthorn, purging buckthorn, or just buckthorn, is a species of small tree in the flowering plant family Rhamnaceae. It is native to Europe, northwest Africa and western Asia, from the central British Isles south to Morocco, and east to Kyrgyzstan. It was introduced to North America as an ornamental shrub in the early 19th century or perhaps before, and is now naturalized in the northern half of the continent, and is classified as an invasive plant in several US states and in Ontario, Canada.

Buckthorn (Wiktionary)

English

Etymology

buck +‎ thorn

Noun

buckthorn (plural buckthorns)

  1. Any of several, often thorny shrubs or small trees, especially
    1. the family Rhamnaceae, the buckthorn family,
      1. especially genus Rhamnus,
        1. especially the common buckthorn or purging buckthorn; Rhamnus cathartica.
      2. also genus Frangula, especially Frangula alnus, the alder buckthorn.
    2. Hippophae, the sea buckthorn.

Derived terms

  • alder buckthorn - Frangula alnus ( <= Rhamnus frangula), Frangula caroliniana ( <= Rhamnus caroliniana)
  • alderleaf buckthorn - Rhamnus alnifolia
  • buckthorn bully - Sideroxylon lycioides
...
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