Rosa pisocarpa subsp. pisocarpa

Synonyms: Rosa rivalis Eastwood
Treatment appears in FNA Volume 9. Treatment on page 110.

Plants often forming thickets. Stems loosely to densely clustered, 10–25 dm; infrastipular prickles primarily (1–) 2, 2–10 mm. Leaves 5–10 cm; leaflets 5–7 (–9), most commonly 7, terminal blade 15–35 mm. Inflorescences (1–) 3–12-flowered. Flowers: sepal tip to 10 mm, abaxial surfaces usually stipitate-glandular; carpels 22–35. Hips usually globose, rarely subglobose, 7–10 mm diam., abruptly narrowed to neck 1.5–3 mm diam. Achenes 25–35.2n = 14.


Phenology: Flowering Jun–Aug.
Habitat: Coasts, stream banks, riparian areas, open and low places, sedge meadows, swamps, roadside hedges, thickets, montane oak belts
Elevation: 30–2100 m

Distribution

V9 162-distribution-map.jpg

B.C., Calif., Oreg., Wash.

Discussion

Subspecies pisocarpa encompasses traditional circumscriptions of Rosa pisocarpa. It occurs in coastal regions from southwestern British Columbia to northern California, west of and within the Cascade Mountains. Stems tend to have paired erect prickles, stipitate-glandular sepals with elongate tips, and clusters of pea-shaped hips. Limited populations intermediate with R. woodsii subsp. ultramontana occur in Cascade Mountain passes along the Fraser River (British Columbia), the Columbia River (Oregon and Washington), and the Klamath River (southern Oregon). Reports of R. pisocarpa from farther east (for example, R. J. Davis 1952) were based on R. woodsii or other species.

The Snohomish and Squaxin of Puget Sound, Washington, used subsp. pisocarpa root decoctions to treat sore throats, and bark infusions for after child-birth, respectively (D. E. Moerman 1998). Southeastern Vancouver Island Saanich have used young shoots for food in the spring; ripe hips were eaten raw in the fall. They also boiled branches to make a decoction, which was used to flush the eyes of those not able to see well; this preparation served to treat any eye problem, including cataracts (N. J. Turner, pers. comm.).

Selected References

None.

Lower Taxa

None.

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

stipitate-glandular +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
basiparietal +  and basal +
1.5mm +  and 2.5mm +
puberulent +  and glabrous +
pubescent +  and glabrous +
lustrous +  and dull +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Walter H. Lewis +, Barbara Ertter +  and Anne Bruneau +
A. Gray +
red +, dull +  and dark reddish-brown +
exfoliating +
compound +  and simple +
opposite +  and alternate +
cuneate +  and obtuse +
4.5 cm45 mm <br />0.045 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
lustrous +  and dull +
elliptic-ovate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
widest +, 9mm +  and 16mm +
persistent +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
free +  and distinct +
1-16(-50)-flowered +
rarely puberulent +  and tomentose +
rarely puberulent +  and tomentose +
B.C. +, Calif. +, Oreg. +  and Wash. +
not +  and aggregated +
30–2100 m +
2.4 cm24 mm <br />0.024 m <br /> (3.8 cm38 mm <br />0.038 m <br />) +
not +  and aggregated +
eglandular +  and glandular +
urceolate +, pyriform +, oblong +, ellipsoid +, ovoid-obovoid +  and globose +
Coasts, stream banks, riparian areas, open and low places, sedge meadows, swamps, roadside hedges, thickets, montane oak belts +
stipitate-glandular +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
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 />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
stipitate-glandular +, setose +  and glabrous +
narrowed +, subglobose +  and globose +
0.7 cm7 mm <br />0.007 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 +
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 /> (0.5 cm5 mm <br />0.005 m <br />) +
setose +  and glabrous +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
leathery +  and fleshy +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
(1-)3-12-flowered +
crassinucellate +
3-foliate +  and compound +
10 cm100 mm <br />0.1 m <br /> (13 cm130 mm <br />0.13 m <br />) +
deciduous +
5 cm50 mm <br />0.05 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 +
entire +, serrate +  and 1(-2)-serrate +
stipitate-glandular +, ciliolate to ciliate +  and ciliolate +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
distinct +
1mm +  and 1.5mm +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
inferior +  and superior +
clustered +, biseriate +  and superposed +
1-30(-50)-flowered +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
recurved +  and erect +
puberulent +  and glabrous +
1 cm10 mm <br />0.01 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
free +  and distinct +
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
hairy +  and glabrous +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering Jun–Aug. +
adnate +, free +, connate +  and distinct +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Proc. Amer. Acad. Arts +
hairy +  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 />) +
persistent +
free +  and distinct +
erect +  and spreading +
ovatelanceolate +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
rarely densely puberulent +  and tomentose +
Endemic +  and Illustrated +
free +  and distinct +
flexuous +
procumbent +  and sprawling +
ascending +  and erect +
1 +  and 20 +
0.8 cm8 mm <br />0.008 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
0.2 cm2 mm <br />0.002 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 +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
pubescent +, glabrous +  and stipitate-glandular +
Rosa rivalis +
Rosa pisocarpa subsp. pisocarpa +
Rosa pisocarpa +
subspecies +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
3mm +  and 7mm +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
12 +  and 22 +
inconspicuous +
enlarged +  and small +
rhizomatous +  and open +
in dense thickets +  and clustered +
small +  and miniature +