Rubus wahlbergii

Rubus wahlbergii is a brambleberry in the rose family (Rosaceae), one of the many apomictic microspecies belonging to the Rubus fruticosus aggregate of European blackberries. It was first described by the Swedish botanist Jakob Georg Agardh and is found primarily in northern and central Europe, where it occupies woodland edges, hedgerows, scrub, and clearings on moderately fertile soils. Plants form arching, scrambling, biennial canes (primocanes) up to 2-3 meters long, armed with stout, slightly curved, broad-based prickles; the canes are typically reddish, slightly furrowed, and sparsely hairy. Leaves are alternate, palmately compound with usually five leaflets on primocanes (three on flowering branches); leaflets are ovate to elliptic, doubly serrate, dark green and glabrescent above, paler and softly pubescent beneath. Inflorescences are terminal panicles bearing white to pale pink flowers about 2-3 cm across with five petals, numerous stamens, and several free carpels. The aggregate fruit is a typical blackberry composed of many small black drupelets, ripening in late summer.