Rosa nutkana subsp. macdougalii

(Holzinger) Piper

Contr. U.S. Natl. Herb. 11: 335. 1906.

Common names: Macdougal’s or Spalding rose
EndemicIllustrated
Basionym: Rosa macdougalii Holzinger Bot. Gaz. 21: 36. 1896 (as macdougali)
Synonyms: R. nutkana var. hispida Fernald R. rainierensis Crépin ex Rydberg R. spaldingii
Treatment appears in FNA Volume 9. Treatment on page 113. Mentioned on page 114, 115.
Revision as of 12:53, 30 July 2020 by imported>Volume Importer
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Shrubs, openly branched. Stems (6–) 10–25 (–30) dm, internodes 5–6.5 cm; prickles (distal stems and fertile branches) usually absent, infrastipular rarely present, usually erect or subulate. Terminal leaflet margins 1-serrate, teeth eglandular, abaxial surfaces eglandular. Inflorescences 1–3 (–9) -flowered. Sepals: abaxial surfaces usually eglandular, rarely setose or stipitate-glandular at bases. 2n = 42.


Phenology: Flowering May–Aug.
Habitat: Rocky dry slopes, stream banks and bottoms, moist meadows, forest edges, sheltered slopes, roadside banks, fences
Elevation: 200–2300 m

Distribution

V9 167-distribution-map.jpg

B.C., Calif., Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.

Discussion

The interior subsp. macdougalii occurs primarily in forested areas in central British Columbia, Oregon, and Washington east of the Cascade Mountains to the northern Rocky Mountains, barely entering northern Utah and northwestern Colorado, mostly west of the continental divide. Shrubs are more openly branched and sparsely armed than those of subsp. nutkana, with eglandular, usually 1-serrate leaflets. Isolated populations from north-central California (including Rosa brownii Rydberg, an illegitimate name) have more uniformly ovate or obovate leaflets and more compact branches than in northern populations.

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.

stipitate-glandular +  and setose +
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 +
(Holzinger) Piper +
reddish-brown +
exfoliating +
compound +  and simple +
opposite +  and alternate +
cuneate +  and obtuse +
Rosa macdougalii +
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 +
Macdougal’s or Spalding rose +
1-16(-50)-flowered +
rarely puberulent +  and tomentose +
rarely puberulent +  and tomentose +
B.C. +, Calif. +, Colo. +, Idaho +, Mont. +, Oreg. +, Utah +, Wash. +  and Wyo. +
not +  and aggregated +
200–2300 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 +
Rocky dry slopes, stream banks and bottoms, moist meadows, forest edges, sheltered slopes, roadside banks, fences +
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 +
5 cm50 mm <br />0.05 m <br /> (6.5 cm65 mm <br />0.065 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 May–Aug. +
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 />) +
Contr. U.S. Natl. Herb. +
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. nutkana var. hispida +, R. rainierensis +  and R. spaldingii +
Rosa nutkana subsp. macdougalii +
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 />) +
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 +