NATIVE RANGE: Likely a form of Rubus nemoralis, which is native to Western Europe
FIRST FINDING IN SLOVENIA: 2000
PATHWAYS: horticulture, cultivated for its edible fruits
POSSIBLE TO FIND: yearround
FLOWERING SEASON: July – August
DESCRIPTION: A dense evergreen shrub. Young branches are upright, older ones bend downwards. Leaves laciniate; very deeply divided and serrated, with 3 to 5 leaflets. The stem and leaf petioles are covered with curved spines, which are red at the base and yellow at the tips. Flowers in inflorescences at end of shoots. The flower cusp is green, covered with small thorns. Sepals are leaves spiny, 8–10 mm long. Petals pink or white, 2–2.5 cm long, narrow and with a tree-lobed upper margin, so that the sepals are visible between them. The fruits are initially red, black when ripe.
HABITAT: Forests, clearings, ruderal habitats and parks on sandy soils.
STATUS: Mainly cultivated in gardens, so far only locally found in natural habitats outside its native range.
SIMILAR SPECIES: There are many other blackberry (micro)species, but none have distinctly laciniate leaflets. Cutleaf elderberry (Sambucus nigra f. laciniata), has similar feather-like leaves, but the leaves are much narrower. The flowers are white, grouped in comb-like umbels.
SOURCES: Terenski priročnik za prepoznavanje tujerodnih vrst v gozdovih, druga dopolnjena izdaja Note: because this plant is likely native to Western Europe, we did not include it in the printed English edition of our field guide.