Rosa multiflora

Thunberg in J. A. Murray

in J. A. Murray, Syst. Veg. ed. 14, 474. 1784.

Common names: Japanese or multiflora rose rosier multiflore
IllustratedIntroducedWeedy
Treatment appears in FNA Volume 9. Treatment on page 84. Mentioned on page 83, 85.

Stems erect, arching, procumbent, or climbing, 15–30 (–100) dm; bark of canes green to reddish-brown; infrastipular prickles paired, curved, rarely erect, stout, 4–6 × 3 mm, internodal prickles fewer, similar, aciculi absent. Leaves deciduous, 5–12 cm; stipules narrowly lanceolate, 8–13 × 1.5–2 mm, auricles flared, 4–8 mm, margins fimbriate, cleft to 3 mm, usually stipitate-glandular or gland-tipped, surfaces glabrous, sometimes puberulent, eglandular or sessile or stipitate-glandular; petiole and rachis with pricklets, puberulent, pubescent, or tomentose, usually stipitate-glandular, sometimes eglandular; leaflets (5–) 7–9 (–11), terminal: petiolule 7–13 mm, blade obovate to elliptic, 10–45 × 8–25 mm, membranous, base cuneate, margins 1 (–2) -serrate, teeth 12–20 per side, sharp, rarely gland-tipped, apex acute to long-acuminate, abaxial surfaces glabrous or pubescent (especially midveins), eglandular, adaxial green, dull, glabrous. Panicles 5–30+-flowered. Pedicels 5–12 mm, pubescent (especially proximally), sometimes glabrous, stipitate-glandular or eglandular; bracts 1 or 2, narrowly lanceolate, 5–10 × 1–2 mm, margins short-stipitate-glandular, surfaces glabrous, eglandular. Flowers sweet-scented, 1.5–2.5 cm diam.; hypanthium oblong, 2 × 1–1.5 mm, eglandular or stipitate-glandular; sepals ovate-acuminate, 6–10 × 1.5–2 mm shorter than petals, margins pinnatifid, tip 1–2 × 0.5 mm, abaxial surfaces glabrous, usually stipitate-glandular; petals single or double, white, rarely pale-pink, 7–13 × 5–9 mm; carpels 6–11, styles glabrous, exsert 3–4 mm beyond stylar orifice rims (0.5–1 mm diam.), hypanthial disc 2–3 mm diam. Hips orange-red to red, ovoid to globose, (4–) 5–7 (–10) × 5–7 mm, eglandular or sparsely stipitate-glandular. Achenes 6–11, tan, 3.8–5 × 2–2.5 mm. 2n = 14.


Phenology: Flowering Apr–Jun.
Habitat: Disturbed areas, thickets, borders of woods, fences, streamsides, roadsides, old pastures, fields, acidic soil
Elevation: 0–1700 m

Distribution

V9 123-distribution-map.jpg

Introduced; B.C., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., Que., Ala., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Asia (China), Asia (Japan), also in Mexico, Pacific Islands (Philippines)

Discussion

Rosa multiflora was introduced in North America before 1811 as an ornamental. In the twentieth century, seedlings were widely provided by the U.S. Soil Conservation Service for growing hedgerows and similar plantings where it thrived in more acidic soil east of the Rocky Mountains. The species invaded pastures, degraded forage quality, reduced grazing area and agricultural productivity, and was widely reported as a noxious weed, causing, for instance, severe eye and skin irritations in cattle. Domestic sheep and goats feed on leaves, new buds, and shoots, and goats in pastures with severe R. multiflora infestations can virtually eliminate this rose within four seasons. The USDA Forest Service reported in 2006 that in 31 states the species had become a major conservation issue (S. E. Banasiak and S. J. Meiners 2009).

Vigorous climbers known as the “hard-luck” roses because of their great tolerance to frost, neglect, and varying habitats have been developed from Rosa multiflora, which has long served as a major root stock for budding roses in the rose industry worldwide.

Achenes of Rosa multiflora have long been used as a purgative in Japanese traditional medicine.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Rosa multiflora"
stipitate-glandular +, glabrous +  and pubescent +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2mm +  and 2.5mm +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Walter H. Lewis +, Barbara Ertter +  and Anne Bruneau +
Thunberg in J. A. Murray +
gray +, red +  and brown +
exfoliating +
compound +  and simple +
opposite +  and alternate +
cuneate +
4.8 cm48 mm <br />0.048 m <br /> (7 cm70 mm <br />0.07 m <br />) +
2.7 cm27 mm <br />0.027 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
lustrous +  and dull +
smooth +  and rugose +
obovate +  and elliptic +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
8mm +  and 25mm +
persistent +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
free +  and distinct +
Japanese or multiflora rose +  and rosier multiflore +
B.C. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, Que. +, Ala. +, Ark. +, Calif. +, Colo. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Utah +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Asia (China) +, Asia (Japan) +, also in Mexico +  and Pacific Islands (Philippines) +
not +  and aggregated +
0–1700 m +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
sweet-scented +
not +  and aggregated +
eglandular +  and glandular +
urceolate +, pyriform +, oblong +, ellipsoid +, ovoid-obovoid +  and globose +
Disturbed areas, thickets, borders of woods, fences, streamsides, roadsides, old pastures, fields, acidic soil +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
orange-red +  and red +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
stipitate-glandular +
ovoid +  and globose +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
purplish black +, purplish red +, orange-red +  and red +
2 cm20 mm <br />0.02 m <br /> (?) +
stipitate-glandular +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
leathery +  and fleshy +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
(1-)4-30(-50)-flowered +
crassinucellate +
3-foliate +  and compound +
deciduous +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
leathery +  and membranous +
petiolulate +  and subsessile +
elliptic +  and obovate more or less oblong obovate-elliptic lanceolate-elliptic or obovate-oblong +
1(-2)-serrate +  and cleft +
short-stipitate-glandular +  and stipitate-glandular +
pinnatifid +  and fimbriate +
distinct +
inferior +  and superior +
clustered +, biseriate +  and superposed +
5-30+-flowered +
stipitate-glandular +, glabrous +  and pubescent +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
free +  and distinct +
0.7 cm7 mm <br />0.007 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
double +  and single +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
stipitate-glandular +, tomentose +, pubescent +  and puberulent +
0.7 cm7 mm <br />0.007 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Flowering Apr–Jun. +
adnate +, free +, connate +  and distinct +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
flattened +
3 cm30 mm <br />0.03 m <br /> (?) +
in J. A. Murray, Syst. Veg. ed. +
stipitate-glandular +, tomentose +, pubescent +  and puberulent +
not arillate +
deciduous +  and persistent +
free +  and distinct +
ovate-acuminate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
rarely densely puberulent +  and tomentose +
Illustrated +, Introduced +  and Weedy +
free +  and distinct +
branched +  and simple +
climbing +  and procumbent +
arching +  and erect +
1 +  and 20 +
0.8 cm8 mm <br />0.008 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
persistent +
free +  and connate +
not elongate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
eglandular +  and sessile +
glabrous +, stipitate-glandular +  and puberulent +
Rosa multiflora +
Rosa sect. Systylae +
species +
1mm +  and 2mm +
0.5 cm5 mm <br />0.005 m <br /> (?) +
gland-tipped +
12 +  and 20 +
inconspicuous +
enlarged +  and small +