Rosa nutkana subsp. melina

(Greene) W. H. Lewis & B. Ertter

Novon 17: 345. 2007.

Common names: Rocky Mountain rose
EndemicIllustrated
Basionym: Rosa melina Greene Pittonia 4: 10. 1899
Synonyms: R. oreophila Rydberg R. pandorana Greene R. underwoodii Rydberg
Treatment appears in FNA Volume 9. Treatment on page 113. Mentioned on page 108, 112, 114.

Shrubs, openly branched. Stems 4–10 (–15) dm, internodes 2–2.5 cm; prickles (distal stems and fertile branches) infrastipular, curved or hooked, often stout, internodal sometimes present, smaller, rarely erect, sometimes absent. Terminal leaflet margins usually 2+-serrate, teeth gland-tipped, abaxial surfaces glandular or eglandular. Inflorescences usually 1 (–5) -flowered. Sepals: abaxial surfaces sessile or stipitate-glandular.


Phenology: Flowering late Jun–Jul.
Habitat: Aspen, fir, spruce, and pine forest edges and clearings, stream edges and banks, brushy hillsides, peaks, ridges, grassy rocky slopes, meadows, canyon slopes
Elevation: 2500–3800 m

Distribution

V9 168-distribution-map.jpg

Ariz., Colo., Idaho, N.Mex., Utah, Wyo.

Discussion

Subspecies melina [6x (DNA)] is endemic to high elevations of the Rocky Mountains Biogeographic Province, where it is often associated with Populus tremuloides Michaux. Curved prickles, glandular sepals, and 2- or 3-serrate leaflets help distinguish subsp. melina where it overlaps with subsp. macdougalii in southeastern Idaho and northern Utah. Significant distributional overlap occurs also with Rosa woodsii subsp. manca, which can occur in mixed or adjacent populations. Subspecies melina is generally at higher elevations, flowers somewhat earlier than subsp. manca, and is hexaploid (the latter is diploid).

Selected References

None.

Lower Taxa

None.

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

sessile +, eglandular +  and glandular +
stipitate-glandular +
tan +  and dark tan +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
basiparietal +  and basal +
2mm +  and 4mm +
acuminate;obtuse;acute +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Walter H. Lewis +, Barbara Ertter +  and Anne Bruneau +
(Greene) W. H. Lewis & B. Ertter +
reddish-brown +
exfoliating +
compound +  and simple +
opposite +  and alternate +
cuneate +  and obtuse +
Rosa melina +
5.5 cm55 mm <br />0.055 m <br /> (6.3 cm63 mm <br />0.063 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
2 cm20 mm <br />0.02 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
lustrous +  and dull +
oblong +, cordate +, suborbiculate +, elliptic +  and ovate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 cm10 mm <br />0.01 m <br /> (?) +  and 3 cm30 mm <br />0.03 m <br /> (?) +
persistent +
1.3 cm13 mm <br />0.013 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 />) +
free +  and distinct +
Rocky Mountain rose +
1-16(-50)-flowered +
rarely puberulent +  and tomentose +
rarely puberulent +  and tomentose +
Ariz. +, Colo. +, Idaho +, N.Mex. +, Utah +  and Wyo. +
not +  and aggregated +
2500–3800 m +
4.5 cm45 mm <br />0.045 m <br /> (7 cm70 mm <br />0.07 m <br />) +
not +  and aggregated +
eglandular +  and glandular +
7 cm70 mm <br />0.07 m <br /> (11 cm110 mm <br />0.11 m <br />) +
urceolate +, pyriform +, oblong +, ellipsoid +, ovoid-obovoid +  and globose +
Aspen, fir, spruce, and pine forest edges and clearings, stream edges and banks, brushy hillsides, peaks, ridges, grassy rocky slopes, meadows, canyon slopes +
glandular +  and eglandular +
2 cm20 mm <br />0.02 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 />) +
2 cm20 mm <br />0.02 m <br /> (2 cm20 mm <br />0.02 m <br />) +
purplish red +, orange-red +  and red +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
setose +  and glabrous +
urceolate +, oblong +, ovoid +, depressed-globose +  and globose +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 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 +
globose +  and subglobose or ovoid +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
leathery +  and fleshy +
crassinucellate +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
3-foliate +  and compound +
12 cm120 mm <br />0.12 m <br /> (17 cm170 mm <br />0.17 m <br />) +
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 +
entire +  and 1-2+-serrate +
serrate +  and sinuate +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
distinct +
1mm +  and 2mm +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
inferior +  and superior +
clustered +, biseriate +  and superposed +
1-30(-50)-flowered +
2 cm20 mm <br />0.02 m <br /> (3.3 cm33 mm <br />0.033 m <br />) +
recurved +  and erect +
stipitate-glandular +  and glabrous +
slender +  and stout +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
pink +  and deep rose +
free +  and distinct +
20mm;32mm +
obovate +
2 cm20 mm <br />0.02 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
stipitate-glandular +, pubescent +  and glabrous +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Flowering late Jun–Jul. +
adnate +, free +, connate +  and distinct +
mixed +  and paired +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0 +  and 2 +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
stipitate-glandular +, pubescent +  and glabrous +
not arillate +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
persistent +
free +  and distinct +
spreading +  and erect +
lanceolate +
0.3 cm3 mm <br />0.003 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 +
spreading +  and erect +
1 +  and 20 +
2 cm20 mm <br />0.02 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 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 +
1 cm10 mm <br />0.01 m <br /> (?) +
eglandular +  and glandular +
glabrous +  and stipitate-glandular +
R. oreophila +, R. pandorana +  and R. underwoodii +
Rosa nutkana subsp. melina +
Rosa nutkana +
subspecies +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
5mm +  and 10mm +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
gland-tipped +
8 (?) +  and 20 (?) +
acute +  and obtuse +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
inconspicuous +
enlarged +  and small +
forming dense thickets +  and clustered +
small +  and miniature +