Rosa stellata subsp. abyssa

A. M. Phillips

Madroño 39: 31, fig. 1. 1992.

Common names: Grand Canyon rose
Endemic
Synonyms: Rosa stellata var. abyssa (A. M. Phillips) N. H. Holmgren
Treatment appears in FNA Volume 9. Treatment on page 81. Mentioned on page 80.

Stems erect or arching, 2.5–10 (–15) dm; distal branches tomentose-woolly, with stellate hairs, stipitate-glandular; infrastipular prickles paired, stout, 10–12 × 3.5–6 mm, internodal prickles and aciculi sparse, smaller, eglandular, rarely glandular. Leaves: stipules 4–8 × 1–2 mm, margins entire, often sessile or stipitate-glandular, glands sparse to common, auricles foliaceous; petiole and rachis puberulent, sometimes glabrous; leaflets 3, terminal: petiolule 1 mm, blade obovate, margins broadly 1-crenate, teeth 4–8 per side, abaxial surfaces tomentulose or glabrous, adaxial lustrous. Flowers 5 cm diam.; hypanthium: densely setose, setae 4–6 mm; sepals 12–20 × 1–3 (–4) mm; petals dark-pink. Hips subglobose, 10–18 mm diam., densely setose.


Phenology: Flowering May–Jun.
Habitat: Canyon rims and drainages, tops of cliffs, edges of mesas or plateaus, sandy to gravelly soil with limestone chips
Elevation: 1400–2300 m

Discussion

Subspecies abyssa is known only from Coconino and Mohave counties approximately 750 km from the nearest populations of subsp. stellata in New Mexico (A. M. Phillips 1992).

Selected References

None.

Lower Taxa

None.

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

glabrous +  and tomentulose +
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 +
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 +
A. M. Phillips +
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 +
obovate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
? (?) +  and ? (?) +
5mm +  and 13mm +
free +  and distinct +
Grand Canyon rose +
stipitate-glandular +  and tomentose-woolly +
not +  and aggregated +
1400–2300 m +
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 +
Canyon rims and drainages, tops of cliffs, edges of mesas or plateaus, sandy to gravelly soil with limestone chips +
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 />) +
1 cm10 mm <br />0.01 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 />) +
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 />) +
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 +
stipitate-glandular +
1-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 />) +
glabrous +  and puberulent +
1 cm10 mm <br />0.01 m <br /> (?) +
Flowering May–Jun. +
adnate +, free +, connate +  and distinct +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
glabrous +  and puberulent +
1 cm10 mm <br />0.01 m <br /> (?) +
not arillate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
persistent +
free +  and distinct +
ovatelanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
eglandular +, sessile-glandular +  and stipitate +
stipitate-glandular +, glabrous +, puberulent +  and pubescent +
subulate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
rarely densely puberulent +  and tomentose +
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 +
Rosa stellata var. abyssa +
Rosa stellata subsp. abyssa +
Rosa stellata +
subspecies +
3mm +  and 5mm +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
4 +  and 8 +
inconspicuous +
enlarged +  and small +