Rosa stellata

Wooton

Bull. Torrey Bot. Club 25: 152, plate 335. 1898.

EndemicIllustrated
Synonyms: Hesperhodos minutifolius subsp. stellatus (Wooton) Hurst H. stellatus (Wooton) Boulenger
Treatment appears in FNA Volume 9. Treatment on page 80. Mentioned on page 78, 79.
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Shrubs forming dense, low thickets. Stems erect, rarely arching, 2.5–8 (–15) dm; distal branches densely pubescent, usually with, rarely without, stellate hairs, rarely glabrous, sometimes densely or sparsely sessile or stipitate-glandular; infrastipular prickles paired or single, erect, rarely curved, 10–13 × 2.5–6 mm, sometimes with shorter internodal prickles and aciculi 0.5–5 mm. Leaves 2–3 cm; stipules 4–8 × 1–2 mm, margins ± entire, surfaces glabrous or tomentulose, sessile or stipitate-glandular, sometimes eglandular; auricles obtuse, 2–3 × 1.5–2 mm, surfaces tomentulose, eglandular or glandular; petiole and rachis glabrous or pubescent, sparsely sessile and stipitate-glandular, aciculi sparse, with or without glands; leaflets 3–5, terminal: petiolule 0.5–2 mm, blade obovate or deltate, 8–18 × 5–13 mm, margins broadly 1- or, rarely, multi-crenate, sometimes 1-serrate, glandular, teeth 3–8 per side on distal 1/2–2/3 of blades, apex acute or rounded, abaxial surfaces pubescent or tomentulose, rarely glabrous, eglandular, adaxial dull to lustrous, glabrous or tomentulose. Inflorescences 1 (or 2) -flowered. Pedicels 2–16 mm, setae absent or dense or few, to 3 mm, pubescent, rarely glabrous, eglandular or stipitate or sessile-glandular; bracts 0. Flowers 4–5 cm diam.; hypanthium cupulate, 2–5 × 3.5–6 (–8) mm, puberulent or glabrous, setae subulate, 1–6 mm, eglandular, rarely glandular; sepals erect, 12–20 × 4–5 mm, tip 3–5 × 1–2 mm, lobes lanceolate, margins glandular, abaxial surfaces glabrous, basally setose, glandular; petals pink or dark-pink, with strong almond fragrance, 15–25 × 14–25 mm; stamens 175; carpels 60–110, styles exsert 1–2.5 mm beyond stylar orifice (4–5 mm diam.), rims 1 mm wide. Hips dull red (darkening with age), broadly subglobose or cupulate, 7–13 (–18) × (7–) 9–16 (–18) mm, setae to 4 mm, puberulent or glabrous, stipitate-glandular. Achenes 10–15, dark, ± terete-elongate, 3.5–4.5 × 2 mm.

Discussion

Subspecies 3 (3 in the flora).

Selected References

None.

Key

1 Leaflets (3–)5; distal branches usually glabrous, rarely with stellate hairs (usually stipitate-glandular); petioles and rachises glabrous or puberulent; se New Mexico, w Texas. Rosa stellata subsp. mirifica
1 Leaflets 3; distal branches tomentose-woolly, with stellate hairs; petioles and rachises pubescent or puberulent, sometimes glabrous; nw Arizona, sc New Mexico > 2
2 Hypanthia: setae 1–3 mm; terminal leaflets abaxially tomentulose on midveins, otherwise glabrous; sc New Mexico. Rosa stellata subsp. stellata
2 Hypanthia: setae 4–6 mm; terminal leaflets abaxially tomentulose or glabrous; nw Arizona. Rosa stellata subsp. abyssa

"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 stellata"
setose +, glabrous +, tomentulose +  and pubescent +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
terete-elongate +
tomentulose +  and glabrous +
dull +  and lustrous +
rounded;acute +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Walter H. Lewis +, Barbara Ertter +  and Anne Bruneau +
Wooton +
gray +, red +  and brown +
exfoliating +
compound +  and simple +
opposite +  and alternate +
cuneate +
Undefined subg. Hesperhodos +
0.8 cm8 mm <br />0.008 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
lustrous +  and dull +
smooth +  and rugose +
deltate +  and obovate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
leathery +  and membranous +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 1.3 cm13 mm <br />0.013 m <br /> (?) +
free +  and distinct +
Ariz. +, N.Mex. +  and Tex. +
not +  and aggregated +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 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 +  and glabrous +
1.3 cm13 mm <br />0.013 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
stipitate-glandular +, setose +, glabrous +  and pubescent +
cupulate +  and subglobose +
leathery +  and hard +
0.9 cm9 mm <br />0.009 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
purplish black +, purplish red +, orange-red +  and red +
glabrous +  and puberulent +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
leathery +  and fleshy +
crassinucellate +
3-foliate +  and compound +
deciduous +
1.5 cm15 mm <br />0.015 m <br /> (?) +  and 3 cm30 mm <br />0.03 m <br /> (?) +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
petiolulate +  and subsessile +
elliptic +  and obovate more or less oblong obovate-elliptic lanceolate-elliptic or obovate-oblong +
lanceolate +
1-serrate +  and entire +
multi-crenate +
distinct +
inferior +  and superior +
clustered +, biseriate +  and superposed +
glabrous +, pubescent +  and setose +
0.2 cm2 mm <br />0.002 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
dark-pink +  and pink +
free +  and distinct +
15mm;25mm +
obovate +
1.4 cm14 mm <br />0.014 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
stipitate-glandular +, pubescent +  and glabrous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
adnate +, free +, connate +  and distinct +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Bull. Torrey Bot. Club +
stipitate-glandular +, pubescent +  and glabrous +
not arillate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
persistent +
free +  and distinct +
ovatelanceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
eglandular +, sessile-glandular +  and stipitate +
stipitate-glandular +, glabrous +, puberulent +  and pubescent +
subulate +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
rarely densely puberulent +  and tomentose +
Endemic +  and Illustrated +
free +  and distinct +
branched +  and simple +
procumbent +  and climbing +
arching +  and erect +
1 +  and 20 +
caducous +  and persistent +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
eglandular +, glandular +  and dentate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
persistent +
not elongate +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
glandular +, eglandular +  and sessile +
tomentulose +, stipitate-glandular +  and glabrous +
Hesperhodos minutifolius subsp. stellatus +  and H. stellatus +
Rosa stellata +
Rosa sect. Minutifoliae +
species +
3mm +  and 5mm +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
3 (?) +  and 8 (?) +
inconspicuous +
enlarged +  and small +