Rubus odoratus
Rubus hispidus
flowering raspberry, purple flowering raspberry, ronce odorante
bristly blackberry, bristly dewberry, ronce hispide, swamp dewberry
erect, sparsely to moderately hairy, moderately to densely stipitate-glandular, glands dark purple, not pruinose.
biennial, creeping, tip-rooting, flowering branches often erect, glabrous or sparsely hairy, sparsely to densely short- to long-stipitate-glandular, rarely eglandular, not pruinose;
prickles sparse to dense, erect to retrorse, weak, slender, 1–3(–5) mm, narrow-based;
bristles sparse to dense, erect or retrorse, narrow, flexible and weak, not gland-tipped.
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.
persistent, ternate or, rarely, palmately compound, lustrous;
stipules linear to narrowly lanceolate, (2–)5–15(–20) mm;
leaflets 3(–5), terminal obovate to suborbiculate, 1.7–6.5 × 1–5.2 cm, base cuneate to rounded, unlobed, margins moderately to coarsely doubly serrate, apex acute to rounded, abaxial surfaces with bristles on midvein or unarmed, glabrous or sparsely hairy, sparsely to densely short-stipitate-glandular along largest veins.
terminal and axillary, 4–7(–22)-flowered, cymiform to thyrsiform.
terminal on short shoots, usually appearing axillary, 1–7(–10)-flowered, racemiform.
pubescent, moderately to densely stipitate-glandular, glands dark purple.
unarmed or bristles moderate to sometimes dense, erect to retrorse, moderately to densely hairy, sparsely to densely short- to long-stipitate-glandular.
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 white, obovate to oblanceolate, 6–10 mm;
filaments filiform;
ovaries glabrous.
pale to dark red, hemispheric, 0.7–1.5 cm;
drupelets 30–60, coherent, separating from torus.
black, globose to cylindric, to 1 cm;
drupelets (5–)10–15(–20), strongly coherent, separating with torus attached.
= 14.
= 14, 21, 28, 35, 56.
Rubus odoratus
Rubus hispidus
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 hispidus is identified mostly by its creeping primocanes with somewhat lustrous, coriaceous, and relatively small leaves that persist for nearly a year, and an armature of stiff hairs or, rarely, weak, slender prickles. Plants with few persistent leaves may be evidence of introgression with R. flagellaris or R. setosus. Hybrids with R. cuneifolius have been seen around abandoned commercial cranberry bogs in New Jersey (G. Moore, pers. obs.). The superficially similar R. caesius differs from R. hispidus in its pruinose stems, deciduous and non-lustrous leaves, and pruinose fruit.
Rubus hispidus is introduced in southwestern Washington State.
The following nothospecies names are based on putative hybrids involving Rubus hispidus and: R. canadensis (R. ×novanglicus L. H. Bailey); R. flagellaris (R. ×ambigens Fernald, R. ×distinctus L. H. Bailey, R. ×elongatus Brainerd & Peitersen [not R. elongatus Smith], R. ×emeritus L. H. Bailey, R. ×furtivus L. H. Bailey, R. ×kalamazoensis L. H. Bailey, R. ×permixtus Blanchard, R. ×rosendahlii L. H. Bailey, R. ×segnis L. H. Bailey, R. ×varus L. H. Bailey, R. ×vigoratus L. H. Bailey); R. setosus (R. ×adjacens Fernald, R. ×grandidens L. H. Bailey, R. ×harmonicus L. H. Bailey, R. ×jacens Blanchard, R. ×parlinii L. H. Bailey, R. ×spiculosus Fernald, R. ×tardatus Blanchard, R. ×tholiformis Fernald, R. ×trifrons Blanchard, R. ×zaplutus L. H. Bailey).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Flora NW
Go Botany
IL Wildflowers
MD Biodiversity
MI Flora
MO Plants
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
