Ribes niveum |
Ribes lacustre |
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Snake River gooseberry, snow currant, snow gooseberry, snowy gooseberry, white-flower gooseberry |
black gooseberry, black swamp gooseberry, bristly black gooseberry, bristly swamp currant, gadellier lacustre, prickly currant, swamp currant, swamp gooseberry, swamp or prickly or bristly black currant |
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Habit | Plants 0.5–3 m. Stems erect to sprawling, (rooting at tips), glabrous; spines at nodes 1–3(–6), (2–)5–15(–20) mm; prickles on internodes absent or sometimes numerous. | Plants 1–2 m. Stems erect to spreading or prostrate, finely puberulent, sometimes glabrous except for prickles, not glandular; spines at nodes 1–3, 3–12 mm; prickles on internodes scattered to dense. |
Leaves | petiole 0.5–4(–6) cm, glabrous or pubescent and stipitate-glandular; blade broadly reniform to broadly ovate, 3–5-lobed, cleft 1/3–1/2 to midrib, 0.8–5 cm, base truncate to rounded-cuneate, surfaces finely pubescent or only between veins abaxially, lobes broad, rounded ternately, margins 1 or 2 times crenate-dentate, apex mucronate or apiculate. |
petiole 0.7–5.5 cm, pubescent, stipitate-glandular; blade pentagonal, 3–7-lobed, cleft 1/2+ to midrib and again irregularly shallowly cleft, 1–7.8 cm, base truncate or cordate, surfaces glabrous or sparsely puberulent, sometimes glandular on main veins abaxially, sometimes with scattered, yellow, sessile, crystalline glands, lobes acutish, margins deeply 1 or 2 times crenate-dentate, apex acute. |
Inflorescences | pendent, solitary flowers or 2–4(–5)-flowered racemes, 4–6 cm, axis glabrous or pubescent, flowers evenly spaced. |
spreading to pendent, 5–18(–25)-flowered racemes, 3–4 cm, axis reddish stipitate-glandular and puberulent, flowers evenly spaced. |
Pedicels | not jointed, 4–15 mm, glabrous; bracts lanceolate, 1.2–3 mm, glabrous or finely ciliate. |
jointed (joint sometimes obscured by glands and difficult to see especially on short pedicels; may appear as darker line immediately proximal to ovary), 2–10 mm, glandular-bristly; bracts linear-lanceolate, 1.8–4 mm, puberulent and reddish or purplish stipitate-glandular. |
Flowers | hypanthium white, pale greenish, greenish white, or cream, narrowly campanulate, 1.6–3 mm, glabrous, rarely very sparsely hirsute; sepals not overlapping, sharply reflexed, white or very slightly pinkish, narrowly oblong to narrowly oblanceolate, 5–8 mm; petals connivent, erect, white or very slightly pinkish with red veins, oblong to cuneate-obovate, not conspicuously revolute or inrolled, 1.7–3.2 mm; nectary disc not prominent; stamens 2.5–3 times as long as petals; filaments linear, 6.5–9(–10) mm, finely pilose; anthers cream to greenish, ovate-oblong, 0.8–1.6 mm, apex rounded; ovary glabrous; styles connate 1/2+ their lengths, 8–14 mm, pilose on proximal 1/2–3/4. |
hypanthium cream to orangish, shallowly saucer-shaped to crateriform, (0.7–)1–1.2(–1.5) mm, glabrous; sepals somewhat overlapping, spreading or reflexed, cream to pale yellowish green or dull reddish brown, reddish color deepening with age, very broadly ovate-oblong, 1.5–3.5 mm; petals widely separated, erect, pale yellowish green distally and reddish proximally to reddish throughout, broadly fan-shaped to semicircular, cuneate-flabellate, not conspicuously revolute or inrolled, 1–1.5(–1.7) mm; nectary disc prominent, pinkish, raised, angled, covering most of ovary; stamens slightly longer than petals; filaments linear, 1.1–1.7 mm, glabrous; anthers yellow, transversely oblong, 0.5–1 mm, broader than long, apex blunt; ovary sparsely to thickly stipitate-glandular with slender, usually reddish- to purplish-tipped hairs, rarely glabrous; styles connate to middle, 1.4–2 mm, glabrous. |
Berries | palatable but sour, yellow-green, becoming blue-black to purple, globose, 5.5–12 mm, glabrous. |
palatable but insipid, red, becoming black or dark purple, ellipsoid, 4–8(–14) mm, slenderly stipitate-glandular, bristly with reddish stipitate-glandular hairs. |
2n | = 16. |
= 16. |
Ribes niveum |
Ribes lacustre |
|
Phenology | Flowering Apr–Jul. | Flowering Apr–Aug. |
Habitat | Thickets along streams, open hillsides | Moist woods, conifer swamps, stream banks, dry forest slopes, subalpine ridges, krummholtz |
Elevation | 400-2400 m (1300-7900 ft) | 0-3400 m (0-11200 ft) |
Distribution |
CO; ID; NV; OR; WA
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AK; AL; CA; CO; CT; ID; IN; MA; ME; MI; MN; MT; NH; NJ; NV; NY; OR; PA; RI; SD; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NL; NS; NT; ON; PE; QC; SK
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Discussion | Ribes niveum was thought to be extirpated in Colorado; it was rediscovered near Cañon City, Fremont County (T. W. Chumley and R. L. Hartman 2000). It is unusual in having anthers glabrate or finely pilose or arachnoid, closing and extended in fruit. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
The petals and stamens are inserted on the rim of the pink nectary disc in Ribes lacustre. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 37. | FNA vol. 8, p. 26. |
Parent taxa | Grossulariaceae > Ribes | Grossulariaceae > Ribes |
Sibling taxa | ||
Synonyms | R. oxyacanthoides var. lacustre | |
Name authority | Lindley: Edwards’s Bot. Reg. 20: plate 1692. 1834 , | (Persoon) Poiret: in J. Lamarck et al., Encycl., suppl. 2: 856. 1812 , |
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