Ribes acerifolium |
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|---|---|
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maple-leaf blackcurrant, maple-leaf currant |
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| Habit | Plants 0.5–1 m. |
| Stems | spreading to erect, finely puberulent, often thickly sprinkled with small, nearly sessile to rather strongly stipitate glands; spines at nodes absent; prickles on internodes absent. |
| Leaves | petiole 2–5.5 cm, pubescent, stipitate-glandular; blade orbiculate, lobed into 3 main and 2 smaller segments, cleft 1/2 to midrib, 3–8 cm, base deeply cordate, surfaces puberulent and stipitate-glandular abaxially, glabrous adaxially, lobes ovate-deltate, margins 2 times crenate-serrate, apex acute. |
| Inflorescences | pendent, 7–15-flowered racemes, 3–5 cm, axis crisped-puberulent, stipitate-glandular, flowers evenly spaced. |
| Pedicels | jointed, 2–8 mm, crisped-puberulent, stipitate-glandular; bracts lanceolate, 6–8 mm, crisped-puberulent, stipitate-glandular. |
| Flowers | hypanthium greenish white with pinkish tinge, shallowly bowl-shaped, 1–1.5 mm, crisped-puberulent, stipitate-glandular; sepals nearly overlapping, spreading, tips usually recurved, pinkish or white streaked with pink, broadly oblong-ovate to nearly deltate-obovate, 2–3 mm; petals very slightly connate or distinct, spreading with sepals, rose-red, obovate-cuneate, (inwardly pouched and nearly keeled in center), 1–1.5 mm; nectary disc greenish or cream, raised, angled, covering ovary; stamens nearly as long as petals; filaments oblong, 1 mm, glabrous; anthers cream, oval, 0.2–0.3 mm, apex acute; ovary finely crisped-puberulent; styles connate 3/4 their lengths, 0.7–1 mm, glabrous. |
| Berries | palatability not known, gray-black, spheric, to 10 mm, slightly pubescent, sparsely glandular. |
Ribes acerifolium |
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| Phenology | Flowering Jun–Aug. |
| Habitat | Montane to alpine stream banks, meadow thickets, open ridges |
| Elevation | 900-2200 m [3000-7200 ft] |
| Distribution |
ID; OR; WA; BC
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| Discussion | Ribes acerifolium K. Koch (1869), which was believed to block the use of R. acerifolium Howell, was not validly published. Consequently, the name R. howellii Greene, proposed as a substitute name, is superfluous; it appears in many floras and on many herbarium specimens. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| Parent taxa | |
| Sibling taxa | |
| Name authority | Howell: Erythea 3: 34. 1895 , |
| Source | FNA vol. 8, p. 25. |
| Web links | |