Home > Alien species in Slovenia > Alien plants > American pokeweed
NATIVE RANGE: North America
FIRTS FINDING IN SLOVENIA: 1850
PATHWAYS: horticulture; seeds are secondary spread by birds
POSSIBLE TO FIND: Year-round
FLOWERING SEASON: June-September
DESCRIPTION: A branching herbaceous perennial, which may have a partially woody lower stem. The stems of adult plants are usually reddish. Leaves lanceolate, up to 30 cm long. Flowers are borne racemes, up to 30 cm long, which arching towards the end of flowering. Flowers are white. Fruits are round berries, slightly indented at the top, borne in arching clusters. Unripe fruits are green, when ripe they are shiny dark purple. Plants die back each winter.
HABITAT: Growing on shady, nutrient-rich and moist ruderal sites, forest edges, arable fields and wastelands.
STATUS: Widespread all over Europe. In Slovenia widespread, especially in the Central and Eastern parts of the country.
SIMILAR SPECIES: Indian pokeweed (Phytolacca acinosa) usually only grows to 1.2 m. Inflorescence and fruits are borne in erect clusters. European native deadly nightshade (Atropa belladonna) has a similar erect, fleshy stem, but flowers are single, purple-brown and pendulous. Fruits are initially green, turning black when ripe, with a persistent calyx. Its berries are highly toxic!
SOURCE: Field Guide to Invasive Alien Species in European Forests