Group: Spermatophytina (Spermatophytes)
Family: Onagraceae (Evening Primrose family)
Genus: Oenothera (Evening-Primroses)
Oenothera biennis agg. - Evening Primrose
Oenothera parviflora agg. - Northern Evening Primrose
40–120 cm tall. inflorescence: spike-like to racemose, pendulous before flowering, subsequently mostly erect, mostly densely flowered. flowers: yellowish. floral-axis: long tubular, overtopping the ovary. perianth: per whorl 4‑leaved. corolla: 8–16 mm long. calyx-lob...
The colours represent the floristic status of the species in the respective region. Green indicates native occurrences, light green naturalized occurrences. Adventive occurrences are represented by light yellow shades and plants that are cultivated (but rarely occur in the wild) are dark yellow. Grey colours are used, if the floristic status of species is unknown or uncertain.
perennial herbaceous vegetation, extensively used or natural grassland, dwarf shrub heaths, ruderal vegetation, fields, vineyards
in dry habitats