Ribes sanguineum |
Ribes rubrum |
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blood currant, flowering currant, red currant, red-flowering currant, redflower currant, winter currant |
cultivated currant, European red currant, garden red currant, groseillier rouge, northern red currant, red currant, red garden currant |
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| Habit | Plants 1–4 m. | Plants (not strong-smelling), 0.5–1.5 m. | ||||
| Stems | erect, finely pubescent, stipitate-glandular; spines at nodes absent; prickles on internodes absent. |
erect, nearly glabrous, crisped-puberulent (somewhat stipitate-glandular on young growth); spines at nodes absent; prickles on internodes absent. |
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| Leaves | petiole 2–7 cm, puberulent, short stipitate-glandular; blade broadly reniform or cordate-orbiculate to deltate-ovate, nearly equally to irregularly 5-lobed, cleft nearly 1/4 to midrib, 2–7 cm, base subtruncate to cordate, surfaces puberulent to whitish-tomentose abaxially, puberulent adaxially or puberulent and colorless, sessile-glandular on both surfaces, lobes deltate to obtuse, margins finely 2–3 times crenate and denticulate or serrate, apex broadly acute. |
petiole 3–6 cm, glabrous; blade suborbiculate, 5-lobed, cleft 1/3–1/2 to midrib, 2.5–4.5 cm, base truncate to cordate, surfaces not glandular, sparsely hairy on veins abaxially, glabrous adaxially, lobes broadly ovate-triangular, margins bicrenate-serrate, apex acute. |
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| Inflorescences | pendent to stiffly spreading or ascending or erect, 5–40-flowered racemes, 5–15 cm, axis crisped-pubescent and stipitate-glandular, flowers evenly spaced. |
ascending to pendent, 8–20-flowered racemes, 2–6 cm, axis glabrous, not glandular, flowers evenly spaced. |
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| Pedicels | jointed, 5–10 mm, pubescent, stipitate-glandular; bracts oblanceolate or lanceolate, 2–12 mm, with scattered, short hairs and stalked glands. |
jointed, to 6 mm, glabrous, not glandular; bracts broadly ovate, 0.5–1 mm, glabrous. |
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| Flowers | hypanthium white, pink, rose, or red, tubular to campanulate, 3–7 mm, pubescent, stipitate-glandular; sepals not overlapping, spreading or reflexed, white, pink, or red, ovate-elliptic or oblong to oblanceolate or lanceolate, 4–5 mm; petals not or nearly connivent to connivent, erect, white or pink to red, obovate-spatulate to oblong or almost square, not conspicuously revolute or inrolled, 1–3.5 mm; nectary disc not prominent; stamens shorter than to as long as petals; filaments linear or slightly expanded at base, 1.2–2 mm, glabrous; anthers cream, oblong-oval, 0.5–0.8 mm, apex shallowly notched; ovary stipitate-glandular to strongly stipitate-glandular and crisped-puberulent; styles connate nearly to stigmas, 4–6 mm, glabrous or with scattered, stipitate glands at base. |
hypanthium ochroleucous or greenish, saucer-shaped, 1 mm, glabrous; sepals nearly overlapping, spreading (revolute at tips), green or greenish brown, broadly deltate-ovate (abruptly narrowed to slender base), 2–2.5 mm; petals widely separated, erect, cream to pinkish, cuneate-flabellate, not conspicuously revolute or inrolled, 0.3–1 mm; nectary disc prominent, green, raised, 5-angled, covering top of ovary; stamens nearly as long as petals; filaments linear, 0.2–0.3 mm, glabrous; anthers white, dumbbell-shaped, 0.2–0.3 mm (broader than long), apex with U-shaped depression, (anther sacs distinctly separated by connective as broad as sac); ovary glabrous; styles connate 1/2 their lengths, 1+ mm, glabrous. |
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| Berries | palatable but insipid, blue-black, glaucous, ovoid or globose, 3–9(–10) mm, yellowish or greenish stipitate-glandular. |
sour, bright red, globose, 6–10 mm, glabrous. |
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| 2n | = 16. |
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Ribes sanguineum |
Ribes rubrum |
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| Phenology | Flowering Apr–May. | |||||
| Habitat | Mesic habitats in disturbed woods, thickets, roadsides, old homesteads, garden neighborhoods, tamarack swamps | |||||
| Elevation | 0-2200 m [0-7200 ft] | |||||
| Distribution |
CA; ID; OR; WA; BC [Introduced in c Europe]
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CT; IA; IL; IN; MA; MD; ME; MI; MN; MT; NC; NH; NJ; NY; OH; PA; RI; TN; VA; VT; WA; WI; WV; WY; BC; LB; NB; NS; ON; PE; QC; SK; w Europe; cultivated and naturalized throughout Europe [Introduced in North America]
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| Discussion | Varieties 2 (2 in the flora). Ribes sanguineum is widely cultivated. It begins to bloom very early in the season, providing a nectar source for pollinators when little else is available. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
The leaves of Ribes rubrum are rather thick. Cultivated red currants may have originated from a cross between R. rubrum and R. spicatum E. Robson, a rare species native in northern Britain (R. Mabey 1996). Many of the state and province records of occurrence may be the result of repeated escape from cultivation rather than true naturalization. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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| Key |
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| Synonyms | R. rubrum var. sativum, R. sativum, R. sylvestre | |||||
| Name authority | Pursh: Fl. Amer. Sept. 1: 164. 1813 , | Linnaeus: Sp. Pl. 1: 200. 1753 , | ||||
| Source | FNA vol. 8, p. 21. | FNA vol. 8, p. 14. | ||||
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