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.

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.

... 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 +
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 />) +
? (?) +  and ? (?) +
5mm +  and 13mm +
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 +
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 +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
glabrous +  and puberulent +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
leathery +  and fleshy +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
crassinucellate +
3-foliate +  and compound +
deciduous +
1.5cm +  and 3cm +
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 />) +
free +  and distinct +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
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 +
1 cm10 mm <br />0.01 m <br /> (?) +
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 +