Robins Evening Primrose
The robins evening primrose (Oenothera glazioviana Synonyms: Oenothera erythrosepala Borbás, Oenothera lamarckiana Ser. And others) is a new in Europe resulting species of evening primrose (Oenothera) in the family of the evening primrose family (Onagraceae), presumably a hybrid between Oenothera elata subsp. hookeri of Commons and evening primrose (Oenothera biennis) is.
The robins evening primrose is a biennial (or "wenigjährige) herbaceous plant, the height of usually less than a meter, under favorable circumstances, of up to 1.80 m away. The stems and the flower stalks are hairy, with many hairs have a papillenförmig upraised, dark red base. This stems and flower stalks are spotted red. The stem is in the upper part, however, sometimes reddish consistently crowded, so we see no more these dots.
Among the evening primrose evening primrose is the robins mainly by the size of their flowers: The flowers have a diameter of 3.5 cm to 6 cm. The calyx tube is clear overflow red to red-striped. The calyx is 3-6 mm long. The calyx tube is 3.5 cm to 5 cm long.