Rubus bartonianus |
Rubus spectabilis |
|
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Barton's raspberry, bartonberry |
salmon berry |
|
Habit | Shrubs, 8–25 dm, unarmed. | Shrubs, 10–40 dm, usually armed. |
Stems | erect, sparsely short-hairy, glabrescent, eglandular, not pruinose. |
erect to arching, glabrate or sparsely to densely hairy, eglandular or sparsely short-stipitate-glandular, rarely densely long-stipitate-glandular, not pruinose; bark usually papery with age, peeling (especially toward base); prickles absent or sparse to dense, erect, slender, 1–5 mm, broad- to narrow-based. |
Leaves | deciduous, simple; stipules lanceolate, 4–6 mm; blade cordate to broadly ovate, (2–)2.5–4(–5) × (2.5–)3.5–4.5(–5.5) cm, base deeply cordate, 3–5-lobed, lobe apices acute to obtuse, margins coarsely doubly dentate, abaxial surfaces glabrous or sparsely hairy, eglandular or sparsely stipitate-glandular. |
deciduous, ternate; stipules filiform to linear, 3–10 mm; terminal leaflets ovate, 4–15 × 3.5–15 cm, base truncate, rounded to shallowly cordate, shallowly, sharply lobed, margins coarsely serrate to doubly serrate, apex acute to acuminate, abaxial surfaces unarmed or with erect prickles on midvein, moderately to densely hairy, eglandular, rarely stipitate-glandular along midvein. |
Inflorescences | 1-flowered. |
terminal and axillary, 1–2-flowered. |
Pedicels | moderately hairy, eglandular or sparsely stipitate-glandular. |
unarmed or prickles sparse, erect, moderately to densely hairy, eglandular, rarely short-stipitate-glandular. |
Flowers | bisexual; petals white, obovate, (15–)20–25 mm; filaments filiform; ovaries glabrous, styles clavate, villous. |
bisexual; petals pink to magenta, broadly to narrowly obovate, 10–30 mm; filaments laminar; ovaries glabrous. |
Fruits | deep red, hemispheric, to 1 cm; drupelets 10–30, coherent, separating from torus. |
yellow, orange, or red, globose to ovoid, 1–2 cm; drupelets 20–80, strongly coherent, separating from torus. |
2n | = 14. |
|
Rubus bartonianus |
Rubus spectabilis |
|
Phenology | Flowering Mar–May. | Flowering (Feb–)Mar–Jul. |
Habitat | Dry, rocky slopes | Woodlands, woodland edges, bogs, shorelines, roadsides, disturbed areas, moist to wet soil |
Elevation | 300–400 m (1000–1300 ft) | 0–2000 m (0–6600 ft) |
Distribution |
ID; OR
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AK; CA; ID; OR; WA; BC; e Asia (Japan) [Introduced in Europe]
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Discussion | Of conservation concern. Rubus bartonianus is distinguished from the other flowering raspberries within its geographic range by its erect, unarmed stems, relatively small, simple leaves with acute to obtuse lobes, deeply cordate bases, sparsely hairy or glabrous abaxial surfaces, relatively large flowers with white petals, and densely long-hairy, clavate styles. The leaves superficially resemble those of Acer glabrum or some species of Ribes. Rubus bartonianus is most similar to R. neomexicanus but especially R. deliciosus. The species is known only from the Snake River Canyon of Idaho and Oregon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Rubus spectabilis is a thicket-forming shrub that has relatively large and desirably edible fruit. The species is used as an ornamental primarily for its robust, showy flowers and is naturalized in parts of western Europe. It is sister to the Hawaiian endemic R. hawaiiensis A. Gray. See discussion under 36. R. ursinus for the uncertain application of the name R. menziesii Hooker. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 9, p. 36. | FNA vol. 9, p. 53. |
Parent taxa | Rosaceae > subfam. Rosoideae > tribe Rubeae > Rubus | Rosaceae > subfam. Rosoideae > tribe Rubeae > Rubus |
Sibling taxa | ||
Synonyms | R. franciscanus, R. spectabilis var. franciscanus | |
Name authority | M. Peck: Rhodora 36: 267. (1934) | Pursh: Fl. Amer. Sept. 1: 348, plate 16. (1813) |
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