R. rosifolius is an erect or spreading shrub, 1–3 m long. Branchlets grayish brown or dark reddish brown, terete, soft hairy or subglabrous, with straight to curved prickles and yellowish glands. Leaves imparipinnate, usually 5–7-foliolate;petiole 2–3 cm, petiolule of terminal leaflet 0.8–1.5 cm, lateral leaflets subsessile, petiolule and rachis with soft hairs and sparse, minute prickles, sometimes subglabrous, with yellowish glands;stipules linear or lanceolate to ovate-lanceolate, 0.8–1.2 cm × 1.5–3.5 mm, sparsely soft hairy;blade of leaflets ovate or ovate-elliptic to lanceolate, 4–7(–10) × 1.5–5 cm, both surfaces pilose, glabrescent, with yellow glands, abaxially with sparse, minute prickles along the midvein, base rounded, margin sharply incised doubly serrate or coarsely doubly serrate, apex acuminate. Inflorescences terminal or in leaf axils, 1- or 2-flowered;bracts linear or lanceolate, 5–9 mm, puberulous. Pedicel (1–)2–3.5 cm, with ± soft hairs and sparse, minute prickles, sometimes glandular. Flowers 2–3(–5) cm in diameter. Calyx abaxially soft hairy and glandular;sepals triangular-lanceolate or ovate-lanceolate, 0.8–1.2(–1.4) cm × 4–6 mm, apex long caudate. Petals white, oblong, narrowly obovate, or suborbicular, 0.8–1.5 × 0.8–1.2 cm, abaxially shortly hairy, base clawed, apex obtuse. Stamens many, shorter than petals;Pistils to 2 mm, shorter than stamens;ovary glabrous, sometimes glandular;styles glabrous.. Aggregate fruit red, ovoid-globose or narrowly obovoid to oblong, 1–1.5 × 0.8–1.2 cm, glabrous, with few glands;pyrenes deeply foveolate (Flora of China Editorial Committee, 2014).
Related invasive species
- Rubus rosifolius
Related Farm Practice
- Flora
R. rosifolius is a shrub which occurs naturally in forest margins, disturbed areas, landslide-affected land, abandoned fields, pastures, and roadsides. This species can invade the understory of moist and montane forests, especially areas in natural and artificial openings in primary and secondary forests. It is included in the Global Compendium of Weeds (Randall, 2012) and it is also listed as invasive in Brazil, Tanzania, Puerto Rico, Cuba and Hawaii (see distribution table for details;Oviedo Prieto et al., 2012;I3N-Brazil, 2014;PIER, 2014;Rojas-Sandoval and Acevedo-Rodríguez, 2014). In St. Lucia and Hawaii, it can completely cover wet open areas and exclude native species (Motooka et al., 2003;Graveson, 2012). In Brazil, this species invades principally wet and sunny habitats with more than 1800 mm of mean annual precipitation, displacing desirable plants and interfering with passage and use of the land (I3N-Brasil, 2014). In Africa, it invades savanna, coastal bush, disturbed grassland, forest margins, roadsides and riverbanks (BioNET-EAFRINET, 2014).