Rosa pisocarpa

A. Gray

Proc. Amer. Acad. Arts 8: 382. 1872.

EndemicIllustrated
Treatment appears in FNA Volume 9. Treatment on page 109. Mentioned on page 97, 110.
Revision as of 12:53, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Shrubs, loosely clustered or in dense thickets. Stems ascending to erect, (2–) 4–20 (–25) dm, openly branched; bark ± glaucous when young, dark reddish-brown or dull red with age outer layer may exfoliate as thin ash gray peel, glabrous; infrastipular prickles usually paired, erect, rarely curved, usually subulate, 2–10 × 2–4 mm, base glabrous, internodal prickles rare or absent. Leaves 5–10 (–13) cm; stipules 8–22 × 2–5 mm, auricles flared, 2–5 mm, margins usually entire, sometimes erose or lobed, finely ciliolate to ciliate, eglandular, surfaces glabrous or sparsely pubescent, sparsely stipitate-glandular or eglandular; petiole and rachis sometimes with pricklets, glabrous or hairy hairs to 1 mm, sometimes stipitate-glandular; leaflets 5–7 (–9), terminal: petiolule 8–12 mm, blade elliptic-ovate, (15–) 20–45 (–60) × 9–16 (–20) mm, widest at or below middle, membranous, base cuneate to obtuse, margins 1 (–2) -serrate, teeth 12–22 per side, on distal 3/4–4/5 of margin, acute, eglandular, apex acute, sometimes obtuse, abaxial surfaces pale green, usually sparsely pubescent, eglandular, adaxial green, dull, glabrous, rarely puberulent. Inflorescences corymbs, sometimes panicles or solitary flowers, 1–12-flowered. Pedicels erect, sometimes recurved, slender, 10–22 mm, usually glabrous, sometimes finely puberulent, eglandular, rarely stipulate-glandular; bracts 2–3, lanceolate, 8–14 × 3–6 mm, margins entire, sometimes serrate, irregularly stipitate-glandular and/or erose, surfaces glabrous or pubescent, eglandular. Flowers 2.4–3.8 cm diam.; hypanthium ovoid-urceolate, 3–5 × 2.5–3.5 mm, glabrous, rarely setose, eglandular, neck (0–) 0.5–1 × 2 mm; sepals spreading, ovatelanceolate, 10–17 × 1.5–3 mm, tip 3–7 (–10) × 1.5–2.5 mm, margins entire, abaxial surfaces sometimes puberulent, densely or sparsely stipitate-glandular, rarely eglandular; petals single, pink to deep pink, 12–18 × 10–18 mm; stamens 75; carpels 22–35, styles exsert 1–2 mm beyond stylar orifice (1 mm diam.) of hypanthial disc (3.5 mm diam.). Hips scarlet, globose, sometimes subglobose or ovoid, 7–15 × 7–13 mm, fleshy, glabrous, eglandular, rarely setose or stipitate-glandular, neck (0–) 1–1.5 × 1.5–3.5 mm; sepals persistent, erect. Achenes basiparietal, 5–35, tan, 3–4 × 1.5–2.5 mm. 2n = 14, 28.

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Inflorescences (1–)3–12-flowered; sepal abaxial surfaces usually stipitate-glandular, tips to 10 mm; infrastipular prickles (1–)2; hips usually globose, rarely subglobose, abruptly narrowed to necks 1.5–3 mm diam.; leaflets most commonly 7, terminal blade 15–35 mm. Rosa pisocarpa subsp. pisocarpa
1 Inflorescences 1–3(–10+)-flowered; sepal abaxial surfaces usually eglandular, rarely stipitate-glandular, tips to 7 mm; infrastipular prickles 0–1(–2); hips subglobose to ovoid, gradually to abruptly narrowed to necks 2.5–3.5 mm diam.; leaflets most commonly 5, terminal blade 20–45(–60) mm. Rosa pisocarpa subsp. ahartii

"widest" is not a number."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.

... more about "Rosa pisocarpa"
stipitate-glandular +, puberulent +  and pubescent +
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 +
obtuse;acute +
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 />) +
membranous +
0.9 cm9 mm <br />0.009 m <br /> (?) +  and 1.6 cm16 mm <br />0.016 m <br /> (?) +
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 +
2.4 cm24 mm <br />0.024 m <br /> (3.8 cm38 mm <br />0.038 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 +
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 /> (1.5 cm15 mm <br />0.015 m <br />) +
stipitate-glandular +, setose +  and glabrous +
ovoid +, 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 +
setose +  and glabrous +
ovoid-urceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
leathery +  and fleshy +
2.5mm;3.5mm +
1-16(-50)-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 />) +
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 />) +
pink +  and deep pink +
free +  and distinct +
12mm;18mm +
obovate +
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 />) +
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 /> (0.4 cm4 mm <br />0.004 m <br />) +
Proc. Amer. Acad. Arts +
hairy +  and glabrous +
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 +
0.15 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 sect. Cinnamomeae +
Rosa pisocarpa +
Rosa sect. Rosa +
species +
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 +