The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

flowering raspberry, purple flowering raspberry, ronce odorante

European blackberry

Habit Shrubs, 10–20 dm, unarmed. Shrubs, 10–20 dm, armed.
Stems

erect, sparsely to moderately hairy, moderately to densely stipitate-glandular, glands dark purple, not pruinose.

biennial, arching, usually densely, sometimes moderately, hairy, usually eglandular, sometimes sessile- to short-stipitate-glandular, not pruinose;

prickles moderate to dense, recurved to erect, slender, 3–10 mm, broad-based.

Leaves

deciduous, simple;

stipules lanceolate to ovate, 5–15 mm;

blade subrotund to reniform, 9–20(–30) × (10–)15–25(–30) cm, base cordate, palmately, ± deeply, (3–)5-lobed, margins finely, irregularly serrate to doubly serrate, apex acute to acuminate, abaxial surfaces sparsely to moderately hairy, sparsely to densely stipitate-glandular, glands dark purple.

deciduous or ± persistent, palmately compound;

stipules filiform to linear, 5–15 mm;

leaflets 3–5, terminal usually suborbiculate to orbiculate, sometimes broadly elliptic, 4–9 × 4–8 cm, base rounded to shallowly cordate, unlobed, margins moderately to coarsely serrate, apex acute to cuspidate, abaxial surfaces with hooked prickles on midvein, densely white-gray to gray-green tomentose, eglandular or obscurely short-stipitate- to sessile-glandular along midveins.

Inflorescences

terminal and axillary, 4–7(–22)-flowered, cymiform to thyrsiform.

terminal, 7–35-flowered, cymiform or thyrsiform.

Pedicels

pubescent, moderately to densely stipitate-glandular, glands dark purple.

prickles moderate to dense, recurved to erect, densely hairy, moderately to densely stipitate-glandular.

Flowers

bisexual;

petals usually magenta, rarely white, broadly obovate to suborbiculate, (12–)17–25(–30) mm;

filaments filiform;

ovaries distally densely hairy, styles clavate, glabrous.

bisexual;

petals pink to magenta, elliptic to suborbiculate, 6–12(–15) mm;

filaments filiform;

ovaries apically hairy.

Fruits

pale to dark red, hemispheric, 0.7–1.5 cm;

drupelets 30–60, coherent, separating from torus.

black, globose, 1–1.5 cm;

drupelets 15–40, coherent, separating with torus attached.

2n

= 14.

= 28.

Rubus odoratus

Rubus vestitus

Phenology Flowering May–Jul. Flowering Jul–Sep.
Habitat Moist shady sites in deciduous forests, margins of woods, rocky slopes, wooded talus, stream banks, roadsides Woodland edges, open areas, disturbed areas, in moist soil
Elevation 10–1500 m (0–4900 ft) 0–600 m (0–2000 ft)
Distribution
from FNA
AL; CT; DC; DE; GA; IL; IN; KY; MA; MD; ME; MI; MO; NC; NH; NJ; NY; OH; PA; RI; TN; VA; VT; WA; WI; WV; NB; ON; QC [Introduced in Europe]
[WildflowerSearch map]
[BONAP county map]
from FNA
OR; BC; Europe [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
Discussion

Rubus odoratus is introduced in Washington State. The species is distinguished from other flowering raspberries by its erect, unarmed stems, simple leaves, large flowers, magenta petals, glabrous, clavate styles, and purple stipitate glands densely covering most plant parts. A hybrid with R. nutkanus (R. ×fraseri Rehder) is thought to occur in areas of overlap in northern Michigan (E. G. Voss 1972–1996, vol. 2).

The Cherokee used leaf infusions for labor pains and the Iroquois used plant infusions for miscarriage (P. Bergner 1997). Rubus odoratus is grown as an ornamental for its relatively large flowers and magenta petals and its edible fruits that are somewhat dry and insipid.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Rubus vestitus can be distinguished, especially from the closely related R. bifrons and R. ulmifolius, by its long-stipitate-glandular hairs, particularly in the inflorescence, and terminal primocane leaflets that are typically suborbiculate and abaxially densely tomentose. Rubus allegheniensis can possess similar glandular hairs; it does not have pink petals, thyrsiform inflorescences, and rounded and abaxially densely tomentose, often whitened terminal leaflets.

Rubus vestitus has not yet been found in Washington, but it is likely there. Because of the overall similarity of R. vestitus to R. bifrons, it is possible that this potentially weedy species is widespread, but rare and possibly overlooked, occurring as far south as California. In Oregon, R. vestitus prefers shady habitats (B. Wilson, pers. comm.).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 9, p. 47. FNA vol. 9, p. 56.
Parent taxa Rosaceae > subfam. Rosoideae > tribe Rubeae > Rubus Rosaceae > subfam. Rosoideae > tribe Rubeae > Rubus
Sibling taxa
R. allegheniensis, R. arcticus, R. bartonianus, R. bifrons, R. caesius, R. canadensis, R. chamaemorus, R. cuneifolius, R. deliciosus, R. flagellaris, R. glaucifolius, R. hispidus, R. idaeus, R. illecebrosus, R. laciniatus, R. lasiococcus, R. leucodermis, R. neomexicanus, R. nivalis, R. niveus, R. nutkanus, R. occidentalis, R. parviflorus, R. parvifolius, R. pascuus, R. pedatus, R. pensilvanicus, R. phoenicolasius, R. pubescens, R. repens, R. saxatilis, R. setosus, R. spectabilis, R. trivialis, R. ulmifolius, R. ursinus, R. vestitus
R. allegheniensis, R. arcticus, R. bartonianus, R. bifrons, R. caesius, R. canadensis, R. chamaemorus, R. cuneifolius, R. deliciosus, R. flagellaris, R. glaucifolius, R. hispidus, R. idaeus, R. illecebrosus, R. laciniatus, R. lasiococcus, R. leucodermis, R. neomexicanus, R. nivalis, R. niveus, R. nutkanus, R. occidentalis, R. odoratus, R. parviflorus, R. parvifolius, R. pascuus, R. pedatus, R. pensilvanicus, R. phoenicolasius, R. pubescens, R. repens, R. saxatilis, R. setosus, R. spectabilis, R. trivialis, R. ulmifolius, R. ursinus
Synonyms Rubacer odoratum, R. odoratus var. albidus, R. odoratus var. columbianus
Name authority Linnaeus: Sp. Pl. 1: 494. (1753) Weihe & Nees: in M. J. Bluff et al., Comp. Fl. German. 1: 684. (1825)
Web links