Rosa acicularis subsp. sayi

(Schweinitz) W. H. Lewis

Brittonia 11: 19. 1959.

Common names: Say’s acicular rose rosier aciculaire
EndemicIllustrated
Basionym: Rosa sayi Schweinitz in W. H. Keating, Narrat. Exp. St. Peter's River 2: 388. 1824
Synonyms: R. acicularis var. bourgeauiana Crépin R. butleri
Treatment appears in FNA Volume 9. Treatment on page 115. Mentioned on page 77, 107, 112, 114.

Leaves: stipule auricles 4–7 mm wide; petiole and rachis usually with pricklets; leaflets 5–7, margins 1–2-dentate-serrate, teeth 10–25 per 1/2 blade, gland-tipped, abaxial surfaces usually eglandular, sometimes glandular. Pedicels usually eglandular, if stipitate-glandular, not to apex or mostly sparse. Sepals usually 3+ mm wide at bases, abaxial surfaces eglandular, sometimes sparsely stipitate-glandular. 2n = 42.


Phenology: Flowering Jun–Jul.
Habitat: Meadows, moist forest edges, flood plains, forested uplands, sandy aspen slopes, hillsides, calcareous ridges, banks of bogs and streams, dry sandy ridges, clearings in woods, roadsides, ravines
Elevation: 100–2500 m

Distribution

V9 171-distribution-map.jpg

Alta., B.C., Man., N.B., N.W.T., N.S., Nunavut, Ont., Que., Sask., Yukon, Alaska, Colo., Iowa, Maine, Mass., Mich., Minn., Mont., N.H., N.Y., N.Dak., S.Dak., Vt., W.Va., Wis., Wyo.

Discussion

Southern limits of subsp. sayi occur in the Rocky Mountains of Colorado, Black Hills of South Dakota, and algific slopes of talus or broken rock covering ice caves in northeastern Iowa, southwestern Wisconsin, Ice Mountain of West Virginia, and mountainous regions of New England where habitats similar to more northern ecosystems exist. Among these outlying populations, the density of stem prickles and aciculi often decreases and fertile branches rarely may be devoid of most armature. In central Canada and northward to Alaska, sepals have relatively small, short stipitate glands on abaxial surfaces more commonly than farther south, where they are more or less eglandular.

Plants with the morphological features of subsp. sayi also exist in eastern Siberia; confirmation of their identity depends on ploidy levels (W. H. Lewis 1958).

Branches of subsp. sayi, as well as of Rosa nutkana subsp. macdougalii and R. woodsii subsp. ultramontana, were used as cleansing agents and disinfectants, especially at times of illness and death, by the Shuswap people of interior British Columbia. The branches were placed around houses to prevent diseases in corpses from spreading to others; they were also used to disinfect rooms, clean air, and keep bad spirits away. People also used solutions made from rose bushes for steaming and cleansing in sweathouses. Root solutions were used to treat burns by soaking the burned area, which healed well without blistering or scarring. Hips and branches were boiled and decoctions drunk as medicine for treating diarrhea and upset stomach; teas made from branches were drunk to protect oneself from anything bad (N. J. Turner, pers. comm.).

Selected References

None.

Lower Taxa

None.

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

stipitate-glandular +
4 cm40 mm <br />0.04 m <br /> (?) +
basiparietal +  and basal +
2mm +  and 2.5mm +
hairy +  and glabrous +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Walter H. Lewis +, Barbara Ertter +  and Anne Bruneau +
(Schweinitz) W. H. Lewis +
red +  and pale-brown +
exfoliating +
compound +  and simple +
opposite +  and alternate +
not cuneate +
Rosa sayi +
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 /> (6 cm60 mm <br />0.06 m <br />) +
lustrous +  and dull +
ovatelanceolate +, ovoid +  and elliptic +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
13mm +  and 32mm +
persistent +
1.8 cm18 mm <br />0.018 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
free +  and distinct +
Say’s acicular rose +  and rosier aciculaire +
1-16(-50)-flowered +
rarely puberulent +  and tomentose +
rarely puberulent +  and tomentose +
Alta. +, B.C. +, Man. +, N.B. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Colo. +, Iowa +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, N.H. +, N.Y. +, N.Dak. +, S.Dak. +, Vt. +, W.Va. +, Wis. +  and Wyo. +
not +  and aggregated +
100–2500 m +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
not +  and aggregated +
eglandular +  and glandular +
urceolate +, pyriform +, oblong +, ellipsoid +, ovoid-obovoid +  and globose +
Meadows, moist forest edges, flood plains, forested uplands, sandy aspen slopes, hillsides, calcareous ridges, banks of bogs and streams, dry sandy ridges, clearings in woods, roadsides, ravines +
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 bright red or blue-purple +
1 cm10 mm <br />0.01 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
globose +  and ellipsoid or urceolate +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 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 +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
leathery +  and fleshy +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1-16(-50)-flowered +
crassinucellate +
9 cm90 mm <br />0.09 m <br /> (?) +
stipitate-glandular +
flattened +, terete +  and subulate +
4 cm40 mm <br />0.04 m <br /> (?) +
3-foliate +  and compound +
11 cm110 mm <br />0.11 m <br /> (17 cm170 mm <br />0.17 m <br />) +
deciduous +
5.5 cm55 mm <br />0.055 m <br /> (15 cm150 mm <br />0.15 m <br />) +
leathery +  and membranous +
petiolulate +  and subsessile +
elliptic +  and obovate more or less oblong obovate-elliptic lanceolate-elliptic or obovate-oblong +
1-2-dentate-serrate +
short-stipitate-glandular +  and stipitate-glandular +
pinnatifid +
distinct +
1mm +  and 2mm +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
inferior +  and superior +
clustered +, biseriate +  and superposed +
1-30(-50)-flowered +
2.8 cm28 mm <br />0.028 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
stipitate-glandular +
2 cm20 mm <br />0.02 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (2 cm20 mm <br />0.02 m <br />) +
free +  and distinct +
2.2 cm22 mm <br />0.022 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
puberulent +  and pubescent +
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 /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Jun–Jul. +
adnate +, free +, connate +  and distinct +
mixed +  and paired +
declined +  and erect +
subulate +, deltate +, terete +  and hooked +
puberulent +  and pubescent +
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 />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
persistent +
free +  and distinct +
erect +  and spreading +
lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
rarely densely puberulent +  and tomentose +
obtuse +  and acute +
Endemic +  and Illustrated +
free +  and distinct +
flexuous +
procumbent +  and sprawling +
1 +  and 20 +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 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 +
1 cm10 mm <br />0.01 m <br /> (?) +
eglandular +  and sessile-glandular +
hairy +, glabrous +  and puberulent +
R. acicularis var. bourgeauiana +  and R. butleri +
Rosa acicularis subsp. sayi +
Rosa acicularis +
subspecies +
7mm +  and 12mm +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
gland-tipped +
10 +  and 25 +
inconspicuous +
enlarged +  and small +
rhizomatous +  and open +
small +  and miniature +