Rosa cinnamomea

Linnaeus

Sp. Pl. 1: 491. 1753.

Common names: Cinnamon rose rosier canelle
Introduced
Treatment appears in FNA Volume 9. Treatment on page 97. Mentioned on page 77, 98.

Shrubs, forming dense thickets. Stems ± flexuous, 10–20 dm, densely branched; bark dark red to brown, glabrous; infrastipular prickles paired, erect, sometimes curved, stout, 4–7 × 2.5–3 mm, base glabrous, internodal prickles absent, aciculi rare. Leaves 4–8 cm; stipules often convolute, 8–15 × 3–8 mm, auricles flared, (1.5–) 3–5 (–7) mm, margins entire or crenate, sparsely to densely stipitate-glandular, surfaces glabrous, sometimes pubescent, eglandular; petiole and rachis without pricklets, pubescent, eglandular, sometimes sparsely or densely sessile-glandular; leaflets 5 (–7), terminal: petiolule 4–9 mm, blade elliptic to ovate, 20–40 × 12–18 mm, membranous, margins 1-serrate, teeth 9–18 per side, eglandular or gland-tipped, apex acute, abaxial surfaces pale green, ± glaucous, pubescent (especially on veins) or glabrous, glandular, adaxial green, dull, sometimes sparsely pubescent. Inflorescences corymbs, 1 or 2 (or 3) -flowered. Pedicels erect, slender, 7–17 mm, glabrous, eglandular; bracts 2, ovate or ovatelanceolate to obovate, 6–15 × 6–10 mm, margins ciliate, stipitate-glandular, surfaces mostly pubescent, sometimes glabrous. Flowers 3–5 cm diam.; hypanthium hemispheric, 4–5 × 3–4 mm, glabrous, eglandular, neck absent; sepals spreading, lanceolate or ovatelanceolate, 18–25 × 2.5–4 mm, tip 5–8 × 1–2 mm, margins entire, rarely pinnatifid, lobes 1 or 2, abaxial surfaces pubescent, eglandular or sparsely sessile or, rarely, stipitate-glandular; petals double, rarely single, pinkish purple, 9–15 × 9–11 mm; carpels 25–35, styles exsert 4 mm beyond stylar orifice (2.5–3 mm diam.) of hypanthial disc (4–4.5 mm diam.). Hips scarlet, globose, 9–11 × 8–10 mm, fleshy, glabrous, eglandular, neck absent; sepals persistent, erect or spreading, hips rarely maturing. Achenes basal, 17, dark tan, 3–3.5 × 1.5 mm. 2n = 14.


Phenology: Flowering Jun–Jul.
Habitat: Roadsides, old pastures, fencerows, fields, stream banks, near dwellings
Elevation: 0–400 m

Distribution

V9 142-distribution-map.jpg

Introduced; N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Conn., Ill., Maine, Mass., Mich., N.H., N.Y., Ohio, Pa., R.I., Vt., Va., Wis., Europe, Asia (Japan), Asia (Siberia)

Discussion

The double-flowered form of Rosa cinnamomea is often found in eastern North America, where hip formation and achene development are infrequent. The species is distinguished by its mostly convoluted stipules, abaxially glaucous leaflets, and basal achenes.

Selected References

None.

Lower Taxa

None.

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

... more about "Rosa cinnamomea"
, +, sessile +  and eglandular +
stipitate-glandular +, pubescent +, glabrous +  and glaucous +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Walter H. Lewis +, Barbara Ertter +  and Anne Bruneau +
Linnaeus +
dark red +  and brown +
exfoliating +
compound +  and simple +
opposite +  and alternate +
not cuneate +
4 cm40 mm <br />0.04 m <br /> (6.3 cm63 mm <br />0.063 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
lustrous +  and dull +
elliptic +  and ovate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
12mm +  and 18mm +
persistent +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
ovatelanceolate +  and obovate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
free +  and distinct +
Cinnamon rose +  and rosier canelle +
1-16(-50)-flowered +
rarely puberulent +  and tomentose +
rarely puberulent +  and tomentose +
N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Conn. +, Ill. +, Maine +, Mass. +, Mich. +, N.H. +, N.Y. +, Ohio +, Pa. +, R.I. +, Vt. +, Va. +, Wis. +, Europe +, Asia (Japan) +  and Asia (Siberia) +
not +  and aggregated +
0–400 m +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
not +  and aggregated +
eglandular +  and glandular +
urceolate +, pyriform +, oblong +, ellipsoid +, ovoid-obovoid +  and globose +
Roadsides, old pastures, fencerows, fields, stream banks, near dwellings +
1.8 cm18 mm <br />0.018 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
globose +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
conic +  and flat +
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 +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
leathery +  and fleshy +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1-16(-50)-flowered +
crassinucellate +
3-foliate +  and compound +
11 cm110 mm <br />0.11 m <br /> (17 cm170 mm <br />0.17 m <br />) +
deciduous +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
leathery +  and membranous +
petiolulate +  and subsessile +
elliptic +  and obovate more or less oblong obovate-elliptic lanceolate-elliptic or obovate-oblong +
entire +  and 1-serrate +
stipitate-glandular +
pinnatifid +, crenate +  and entire +
distinct +
inferior +  and superior +
clustered +, biseriate +  and superposed +
1-30(-50)-flowered +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
free +  and distinct +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering Jun–Jul. +
adnate +, free +, connate +  and distinct +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
subulate +, deltate +, terete +  and hooked +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (?) +
not arillate +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
persistent +
free +  and distinct +
spreading +  and erect +
ovatelanceolate +  and lanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
rarely densely puberulent +  and tomentose +
Introduced +
free +  and distinct +
flexuous +
procumbent +  and sprawling +
ascending +, spreading +  and erect +
1 +  and 20 +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
persistent +
not elongate +
4 cm40 mm <br />0.04 m <br /> (?) +
glabrous +  and pubescent +
Rosa sect. Cinnamomeae +
Rosa cinnamomea +
Rosa sect. Rosa +
species +
5mm +  and 8mm +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
gland-tipped +  and eglandular +
9 +  and 18 +
inconspicuous +
enlarged +  and small +
rhizomatous +  and open +
small +  and miniature +