Rubus bartonianus |
Rubus pedatus |
|
---|---|---|
Barton's raspberry, bartonberry |
creeping raspberry, five leaf dwarf bramble, five-leaf bramble, strawberry bramble, strawberry dwarf bramble, strawberry-leaf raspberry |
|
Habit | Shrubs, 8–25 dm, unarmed. | Herbs, to 1 dm, unarmed. |
Stems | erect, sparsely short-hairy, glabrescent, eglandular, not pruinose. |
creeping, flowering branches erect, sparsely hairy, eglandular or sparsely stipitate-glandular, not pruinose. |
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, pedately compound; stipules broadly ovate to suborbiculate, 2–3 mm; leaflets 3 (often appearing as if 5), lateral leaflets deeply lobed, sinuses nearly to leaflet base, terminal obovate to obovate-rhombic, (1–)1.5–2.5(–3.4) × (0.8–)1.2–2(–2.5) cm, base cuneate, margins coarsely singly or doubly serrate, apex rounded to obtuse, abaxial surfaces glabrous or sparsely hairy on midvein, eglandular or sparsely stipitate-glandular. |
Inflorescences | 1-flowered. |
1-flowered. |
Pedicels | moderately hairy, eglandular or sparsely stipitate-glandular. |
sparsely hairy, eglandular or sparsely stipitate-glandular. |
Flowers | bisexual; petals white, obovate, (15–)20–25 mm; filaments filiform; ovaries glabrous, styles clavate, villous. |
bisexual; petals white, oblong to narrowly obovate, 6–10 mm; filaments filiform; ovaries glabrous, styles glabrous. |
Fruits | deep red, hemispheric, to 1 cm; drupelets 10–30, coherent, separating from torus. |
red, 0.6–1 cm; drupelets 3–6, weakly coherent, separating from torus. |
2n | = 14. |
|
Rubus bartonianus |
Rubus pedatus |
|
Phenology | Flowering Mar–May. | Flowering Jun–Aug. |
Habitat | Dry, rocky slopes | Coniferous woods, forest edges, glades, meadows, bogs, stream banks, streambeds, roadsides |
Elevation | 300–400 m (1000–1300 ft) | 20–2300 m (100–7500 ft) |
Distribution |
ID; OR
|
AK; ID; MT; OR; WA; AB; BC; YT; ne Asia
|
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 pedatus is recognized by its creeping, unarmed stems, pedately 3–5-foliate leaves, relatively small flowers, white petals, and glabrous ovaries. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 9, p. 36. | FNA vol. 9, p. 49. |
Parent taxa | Rosaceae > subfam. Rosoideae > tribe Rubeae > Rubus | Rosaceae > subfam. Rosoideae > tribe Rubeae > Rubus |
Sibling taxa | ||
Name authority | M. Peck: Rhodora 36: 267. (1934) | Smith: Pl. Icon. Ined. 3: plate 63. (1791) |
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