Rosa nitida

Willdenow

Enum. Pl., 544. 1809.

Common names: Red-spined or shining rose rosier brillant
EndemicIllustrated
Treatment appears in FNA Volume 9. Treatment on page 103. Mentioned on page 95, 96.

Shrubs or subshrubs, some forming clusters. Stems spreading, procumbent, or erect, 2–8 (–10) dm, openly branched; bark dark-brown, glabrous; infrastipular prickles sometimes present, paired, erect or declined, rarely curved, subulate, 6 × 6 mm, base glabrous, internodal prickles usually dense, mixed with aciculi, erect or declined, subulate, terete, 2–7 × 2 mm, eglandular. Leaves 3–10 cm; stipules 10–14 × 4–5.5 mm, auricles flared, 4–5 mm, margins entire or glandular-serrate, eglandular or gland-tipped, surfaces glabrous, eglandular; petiole and rachis with pricklets, glabrous, rarely puberulent, eglandular; leaflets (5–) 7–9, terminal: petiolule 3–5 (–9) mm, blade narrowly elliptic or lanceolate, rarely ovate, 13–27 (–40) × 7–17 mm, membranous, margins 1-serrate, eglandular, rarely gland-tipped, teeth 12–17 per side, sometimes gland-tipped, apex acute to subacuminate, abaxial surfaces green, glabrous or pubescent, eglandular, adaxial deep green, purplish red in fall, lustrous, glabrous. Inflorescences corymbs, 1–3-flowered. Pedicels erect or recurved (as hips mature), slender, 13–25 mm, glabrous, densely long-stipitate-glandular; bracts 1 or 2, lanceolate, 9–18 × 3.5–7 mm, margins entire, rarely serrate, few gland-tipped, apically cleft 2–3.5 mm, surfaces glabrous, eglandular. Flowers 4–5 cm diam.; hypanthium globose or subglobose, 3–4 × 3–5 mm, glabrous, densely stipitate-glandular, neck absent; sepals spreading to reflexed, lanceolate, 14–22 × 2–3 mm, tip 5–10 × 0.5–1 mm, margins entire, abaxial surfaces glabrous, densely stipitate-glandular; petals single, pink to rose, 19–23 × 20–23 mm; carpels 20–24, styles exsert 0.5–1 mm beyond stylar orifice (1.5–2 mm diam.) of hypanthial disc (4 mm diam.). Hips red to dark red, globose to depressed-globose, 8–10 × 7–10 mm, fleshy, glabrous, densely stipitate-glandular, neck absent; sepals deciduous, erect or spreading to reflexed. Achenes basal, 10–14, tan, darkening with age, 2.6–2.8 × 1.6–1.8 mm. 2n = 14.


Phenology: Flowering Jul–Aug.
Habitat: Wet edges of spruce woods, bogs, swamps, rocky ledges, wet thickets, margins of ponds and streams, shores, rocky and grassy hills and bluffs
Elevation: 0–400 m

Distribution

V9 150-distribution-map.jpg

St. Pierre and Miquelon, N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Conn., Maine, Mass., N.H., N.Y., R.I., Vt.

Discussion

Rosa nitida is typical of the eastern Canadian Provincial Element (S. P. McLaughlin 2007) and is often found near or intermixed with R. virginiana. Putative hybrids between R. nitida (2x) and both R. palustris (2x) and R. virginiana (4x) are reported from Nova Scotia and New England. Because the armature of both R. palustris and R. virginiana is predominately or exclusively of infrastipular prickles, hybridity might explain the infrequent occurrences of R. nitida with infrastipular prickles. In a sample of 23 sheets of R. nitida having abundant prickles, two possess infrastipular prickles.

The most diagnostic feature of these shrubs with weak, sprawling stems is their distal branches, which are densely covered with mixed red to reddish purple internodal prickles and aciculi with infrastipular prickles relatively few.

Selected References

None.

Lower Taxa

None.

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

... more about "Rosa nitida"
stipitate-glandular +, glabrous +  and pubescent +
darkening +  and tan +
0.26 cm2.6 mm <br />0.0026 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
1.6mm +  and 1.8mm +
purplish red +  and green +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Walter H. Lewis +, Barbara Ertter +  and Anne Bruneau +
Willdenow +
dark-brown +
exfoliating +
compound +  and simple +
opposite +  and alternate +
not cuneate +
2.7 cm27 mm <br />0.027 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
lustrous +  and dull +
ovate +, lanceolate +  and elliptic +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
7mm +  and 17mm +
persistent +
0.9 cm9 mm <br />0.009 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
lanceolate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
free +  and distinct +
Red-spined or shining rose +  and rosier brillant +
1-16(-50)-flowered +
rarely puberulent +  and tomentose +
rarely puberulent +  and tomentose +
St. Pierre and Miquelon +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Conn. +, Maine +, Mass. +, N.H. +, N.Y. +, R.I. +  and Vt. +
not +  and aggregated +
0–400 m +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
not +  and aggregated +
eglandular +  and glandular +
urceolate +, pyriform +, oblong +, ellipsoid +, ovoid-obovoid +  and globose +
Wet edges of spruce woods, bogs, swamps, rocky ledges, wet thickets, margins of ponds and streams, shores, rocky and grassy hills and bluffs +
stipitate +  and eglandular +
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 />) +
red +  and dark red +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
stipitate-glandular +  and glabrous +
globose +  and depressed-globose +
0.7 cm7 mm <br />0.007 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 +
setose-glandular +, stipitate +  and eglandular +
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 +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
stipitate-glandular +  and glabrous +
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 /> (0.5 cm5 mm <br />0.005 m <br />) +
1-16(-50)-flowered +
crassinucellate +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
declined +  and erect +
terete +  and subulate +
2 cm20 mm <br />0.02 m <br /> (?) +
3-foliate +  and compound +
11 cm110 mm <br />0.11 m <br /> (17 cm170 mm <br />0.17 m <br />) +
deciduous +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
leathery +  and membranous +
petiolulate +  and subsessile +
elliptic +  and obovate more or less oblong obovate-elliptic lanceolate-elliptic or obovate-oblong +
gland-tipped +, eglandular +  and glandular-serrate +
entire +, cleft +, serrate +  and 1-serrate +
pinnatifid +, entire +, undulate +, sinuate +  and serrulate +
2mm +  and 3.5mm +
distinct +
inferior +  and superior +
clustered +, biseriate +  and superposed +
1-30(-50)-flowered +
setose-glandular +, sessile +, stipitate +  and eglandular +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
recurved +  and erect +
long-stipitate-glandular +  and glabrous +
1.3 cm13 mm <br />0.013 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Pink (?) +  and Rose (?) +
free +  and distinct +
1.9 cm19 mm <br />0.019 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
puberulent +  and glabrous +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Jul–Aug. +
adnate +, free +, connate +  and distinct +
6 cm60 mm <br />0.06 m <br /> (?) +
declined +  and erect +
6 cm60 mm <br />0.06 m <br /> (?) +
puberulent +  and glabrous +
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 />) +
deciduous +
free +  and distinct +
spreading +  and reflexed +
lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
rarely densely puberulent +  and tomentose +
Endemic +  and Illustrated +
free +  and distinct +
flexuous +
erect +  and spreading +
1 +  and 20 +
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 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 +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Rosa sect. Cinnamomeae +
Rosa nitida +
Rosa sect. Rosa +
species +
5mm +  and 10mm +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
gland-tipped +
12 +  and 17 +
inconspicuous +
enlarged +  and small +
rhizomatous +  and open +
subshrub +  and shrub +
small +  and miniature +