Rubus odoratus |
Rubus arcticus |
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flowering raspberry, purple flowering raspberry, ronce odorante |
arctic blackberry, arctic raspberry, dwarf nagoonberry, nagoonberry |
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Habit | Shrubs, 10–20 dm, unarmed. | Herbs, 0.5–3 dm, unarmed. | ||||||||
Stems | erect, sparsely to moderately hairy, moderately to densely stipitate-glandular, glands dark purple, not pruinose. |
erect, thin, weak, ± woody basally, glabrous or sparsely hairy, eglandular, not pruinose. |
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Leaves | deciduous, simple; stipules lanceolate to ovate, 5–15 mm; blade subrotund to reniform, 9–20(–30) × (10–)15–25(–30) cm, base cordate, palmately, ± deeply, (3–)5-lobed, margins finely, irregularly serrate to doubly serrate, apex acute to acuminate, abaxial surfaces sparsely to moderately hairy, sparsely to densely stipitate-glandular, glands dark purple. |
deciduous, simple and usually 3-lobed or ternate; stipules ovate to lanceolate, 4–8 mm; blade margins dentate, serrate, or doubly serrate, abaxial surfaces sparsely to moderately pubescent, eglandular. |
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Inflorescences | terminal and axillary, 4–7(–22)-flowered, cymiform to thyrsiform. |
axillary, 1–3-flowered. |
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Pedicels | pubescent, moderately to densely stipitate-glandular, glands dark purple. |
glabrous or sparsely to moderately pubescent, eglandular or stipitate-glandular. |
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Flowers | bisexual; petals usually magenta, rarely white, broadly obovate to suborbiculate, (12–)17–25(–30) mm; filaments filiform; ovaries distally densely hairy, styles clavate, glabrous. |
bisexual; petals pink to rose or magenta, obovate to oblanceolate, 8–25 mm; outer filaments dilated basally, inner filiform; ovaries glabrous or sparsely hairy, styles filiform. |
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Fruits | pale to dark red, hemispheric, 0.7–1.5 cm; drupelets 30–60, coherent, separating from torus. |
reddish to dark purple, globose, to 1 cm diam., rarely larger; drupelets (10–)15–30, weakly coherent, separating with torus attached. |
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2n | = 14. |
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Rubus odoratus |
Rubus arcticus |
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Phenology | Flowering May–Jul. | |||||||||
Habitat | Moist shady sites in deciduous forests, margins of woods, rocky slopes, wooded talus, stream banks, roadsides | |||||||||
Elevation | 10–1500 m (0–4900 ft) | |||||||||
Distribution |
AL; CT; DC; DE; GA; IL; IN; KY; MA; MD; ME; MI; MO; NC; NH; NJ; NY; OH; PA; RI; TN; VA; VT; WA; WI; WV; NB; ON; QC [Introduced in Europe]
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AK; CO; ME; MI; MN; MT; OR; WA; WY; AB; BC; MB; NT; NU; ON; QC; SK; YT; Eurasia
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Discussion | Rubus odoratus is introduced in Washington State. The species is distinguished from other flowering raspberries by its erect, unarmed stems, simple leaves, large flowers, magenta petals, glabrous, clavate styles, and purple stipitate glands densely covering most plant parts. A hybrid with R. nutkanus (R. ×fraseri Rehder) is thought to occur in areas of overlap in northern Michigan (E. G. Voss 1972–1996, vol. 2). The Cherokee used leaf infusions for labor pains and the Iroquois used plant infusions for miscarriage (P. Bergner 1997). Rubus odoratus is grown as an ornamental for its relatively large flowers and magenta petals and its edible fruits that are somewhat dry and insipid. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 9, p. 47. | FNA vol. 9, p. 35. | ||||||||
Parent taxa | Rosaceae > subfam. Rosoideae > tribe Rubeae > Rubus | Rosaceae > subfam. Rosoideae > tribe Rubeae > Rubus | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Rubacer odoratum, R. odoratus var. albidus, R. odoratus var. columbianus | |||||||||
Name authority | Linnaeus: Sp. Pl. 1: 494. (1753) | Linnaeus: Sp. Pl. 1: 494. (1753) | ||||||||
Web links |