Rosa virginiana

Miller

Gard. Dict. ed. 8, Rosa no. 10. 1768.

Common names: Virginia rose rosier de Virginie
EndemicIllustrated
Synonyms: Rosa lucida Ehrhart R. lucida var. lamprophylla (Rehder) P. V. Heath R. nanella
Treatment appears in FNA Volume 9. Treatment on page 100. Mentioned on page 95, 96, 101, 103.

Shrubs, forming dense thickets and hedge clusters. Stems erect to ascending, (2–) 10–30 dm, densely branched; bark red to purplish red, glabrous; infrastipular prickles paired or single, usually curved, sometimes erect, or declined, appressed, stout, 6–10 × 4–10 mm, base glabrous, internodal prickles or aciculi rare, smaller, sometimes absent. Leaves 5–8 (–11) cm; stipules 14–25 × 4–9 mm, auricles flared, 3–5 mm, margins undulate, irregularly glandular-serrate, surfaces glabrous, eglandular; petiole and rachis sometimes with pricklets and aciculi, glabrous, puberulent, or sparsely pubescent, stipitate-glandular; leaflets 5–7 (–9), terminal: petiolule 6–14 mm, blade narrowly elliptic to ovate, 17–32 × 6–16 mm, membranous, base cuneate, margins 1–2-serrate, teeth 10–18 (–23) per side, gland-tipped or eglandular, apex acute, sometimes obtuse, abaxial surfaces pale green, glabrous or pubescent, eglandular, adaxial deep green, turning purplish red in fall, lustrous, glabrous. Inflorescences corymbs, 1–6 (–15) -flowered. Pedicels erect, slender to stout, 7–14 (–25) mm, glabrous, sparsely to densely stipitate-glandular; bracts 2, broadly lanceolate, 16–25 × 4–6 mm, margins entire, sometimes serrate, gland-tipped, surfaces glabrous with few hairs, eglandular. Flowers 4.3–5.5 cm diam.; hypanthium subglobose or depressed-globose, sometimes globose, 3.5–5.5 × 5.5–6.5 mm, glabrous, stipitate-glandular, neck absent; sepals spreading or reflexed, lanceolate, 20–40 × 2.5–4 mm, tip 6–12 × 0.5–2 mm, margins usually pinnatifid, rarely entire, inner 2 usually entire, abaxial surfaces glabrous, densely stipitate or setose-glandular; petals single, pink to deep rose, rarely white, 22–26 × 25–30 mm; stamens 140; carpels 26–40 (–65), styles exsert 1–2.5 mm beyond stylar orifice (1.5–3 mm diam.) of hypanthial disc (3–5 mm diam.). Hips orange-red to red or red-black, globose to depressed-globose, 8–12 × 9–13 mm, fleshy, glabrous, stipitate-glandular, neck absent; sepals deciduous, erect. Achenes mostly basal, fewer basiparietal, 8–14, tan, 3–4 × 1.5–3.5 mm. 2n = 28.


Phenology: Flowering Jun–early Aug.
Habitat: Grasslands, woods, cliffs, maritime heathlands and grasslands, ditches, old fields, edges of wet spruce woods, rocky ledges, damp thickets, swamps, streams, shores
Elevation: 0–200 m

Distribution

V9 146-distribution-map.jpg

St. Pierre and Miquelon, N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Conn., Del., D.C., Maine, Md., Mass., Mich., N.H., N.J., N.Y., Pa., R.I., Va., in Europe (Austria), in Europe (France), in Europe (Great Britain)

Discussion

Rosa virginiana is primarily coastal from Newfoundland to New Jersey. Distribution extends inland along estuaries and streams for relatively short distances or, rarely, outlying populations as in central New York (glacial lakes of Green Lakes State Park). Some collections from the District of Columbia and adjacent Virginia are R. carolina × R. virginiana, indicating that at one time, the hybrid and both parents existed in the region.

Disjunct introductions of Rosa virginiana are found along railroads, highways, and ports. The species is introduced in Ontario, eastern Michigan, and Virginia.

Rosa virginiana Miller was conserved over R. virginiana Herrmann in 2011 (W. H. Lewis 2008b).

Shrubs of Rosa virginiana form thickets and hedge clusters having erect, stout stems that densely branch, and in Newfoundland reach to six feet tall. These are armed with stout and relatively long infrastipular prickles, erect or curved and broad-based. Leaflets are lustrous adaxially, stipule widths are 4–9 mm, and sepal lengths are 20–40 mm; these traits differentiate R. virginiana from the closely allied R. carolina.

The majority of plants determined as Rosa virginiana from the Allegheny and Appalachian mountains (for example, in West Virginia) and from the Midwest (for example, Indiana) are R. carolina subsp. subserrulata. In the eastern United States, putative hybrids and their introgressants with R. carolina subsp. carolina occur from Massachusetts to New Jersey and, rarely, south or north of these states. These are the nothospecies R. ×novae-angliae W. H. Lewis.

Selected References

None.

Lower Taxa

None.

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

... more about "Rosa virginiana"
setose-glandular +, stipitate +  and eglandular +
glabrous +  and pubescent +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1.5mm +  and 3.5mm +
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 +
Miller +
red +  and purplish red +
exfoliating +
compound +  and simple +
opposite +  and alternate +
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 />) +
1.7 cm17 mm <br />0.017 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
lustrous +  and dull +
narrowly elliptic +  and ovate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
6mm +  and 16mm +
persistent +
1.6 cm16 mm <br />0.016 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
lanceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
free +  and distinct +
Virginia rose +  and rosier de Virginie +
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. +, Del. +, D.C. +, Maine +, Md. +, Mass. +, Mich. +, N.H. +, N.J. +, N.Y. +, Pa. +, R.I. +, Va. +, in Europe (Austria) +, in Europe (France) +  and in Europe (Great Britain) +
not +  and aggregated +
0–200 m +
purplish red +
4.3 cm43 mm <br />0.043 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
not +  and aggregated +
eglandular +  and glandular +
urceolate +, pyriform +, oblong +, ellipsoid +, ovoid-obovoid +  and globose +
Grasslands, woods, cliffs, maritime heathlands and grasslands, ditches, old fields, edges of wet spruce woods, rocky ledges, damp thickets, swamps, streams, shores +
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 />) +
orange-red +  and red or red-black +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
stipitate-glandular +  and glabrous +
globose +  and depressed-globose +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 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 +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.55 cm5.5 mm <br />0.0055 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 +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
1-16(-50)-flowered +
crassinucellate +
3-foliate +  and compound +
8 cm80 mm <br />0.08 m <br /> (11 cm110 mm <br />0.11 m <br />) +
deciduous +
5 cm50 mm <br />0.05 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 +, serrate +, 1-2-serrate +  and glandular-serrate +
pinnatifid +  and undulate +
distinct +
inferior +  and superior +
clustered +, biseriate +  and superposed +
1-30(-50)-flowered +
setose-glandular +, sessile +, stipitate +  and eglandular +
1.4 cm14 mm <br />0.014 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
glabrous +  and sparsely densely stipitate-glandular +
slender +  and stout +
0.7 cm7 mm <br />0.007 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
White (?) +, Pink (?) +  and Deep rose (?) +
free +  and distinct +
2.2 cm22 mm <br />0.022 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
stipitate-glandular +, pubescent +, puberulent +  and glabrous +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Flowering Jun–early Aug. +
adnate +, free +, connate +  and distinct +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
declined +  and erect +
subulate +, deltate +, terete +  and hooked +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Gard. Dict. ed. +
stipitate-glandular +, pubescent +, 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 +
erect +, reflexed +  and spreading +
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 +
Endemic +  and Illustrated +
free +  and distinct +
flexuous +
procumbent +  and sprawling +
erect +  and ascending +
1 +  and 20 +
1.4 cm14 mm <br />0.014 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 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 +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Rosa lucida +, R. lucida var. lamprophylla +  and R. nanella +
Rosa virginiana +
Rosa sect. Rosa +
species +
6mm +  and 12mm +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
eglandular +  and gland-tipped +
10 +  and 18 +
inconspicuous +
enlarged +  and small +
rhizomatous +  and open +
small +  and miniature +