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Shrub, generally < 4 m. Stem: generally erect; nodal spines 0–9; internodal bristles generally 0; twigs generally hairy, generally glandular. Leaf: simple, alternate, generally clustered on short, lateral branchlets, petioled, generally deciduous; blade generally palmately 3–5-lobed, generally thin, generally dentate or serrate, base generally cordate. Inflorescence: raceme, axillary, generally pendent, 1–25-flowered; pedicel generally not jointed to ovary, generally hairy or glandular; bract generally green. Flower: bisexual, radial; hypanthium tube exceeding ovary; sepals generally 5, generally spreading; petals generally 5, generally < sepals, generally flat; stamens generally 5, alternate petals, generally inserted at level of petals (hypanthium top), anthers generally free, generally ± not exceeding petals, generally glabrous, tips generally rounded; ovary inferior, chamber 1, ovules many, styles generally 2, generally fused except at tip, generally glabrous. Fruit: berry.
1 genus, 120 species: northern hemisphere, temperate South America. Some cultivated as food, ornamental. Hypanthium data refer to part above ovary; statements about ovary hairs actually refer to the hypanthium around the ovary. At one time included in Saxifragaceae. —Scientific Editor: Thomas J. Rosatti.
Unabridged note: The family name Grossulariaceae has been conserved, evidently because the genus name on which it is based, Grossularia, is illegitimate.
(Arabic: for plants of this genus) [Schultheis & Donoghue 2004 Syst Bot 29:77–96; Senters & Soltis 2003 Taxon 52:51–66]Key to Ribes
Plant < 2 m. Stem: nodal spines 3. Leaf: blade 2–4 cm, glandular-hairy. Inflorescence: 1–3-flowered. Flower: hypanthium 5–6 mm, longer than wide; sepals reflexed, 2–4 mm, purple; petals 2 mm, white, margins curled inward; anthers exceeding petals, exceeded by styles, tips mucronate. Fruit: 15–20 mm, purple; bristles stiff, glandular and not.
Chaparral; 15–1910 m. Sierra Nevada Foothills, Tehachapi Mountain Area, San Francisco Bay Area, Outer South Coast Ranges, Southwestern California. [Ribes amarum var. hoffmannii Munz] Feb–Apr [Online Interchange]
Previous taxon: Ribes
Next taxon: Ribes aureum
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Feb 28 2015
Citation for this treatment: [Author of taxon treatment] 2013. Ribes, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=41372, accessed on Feb 28 2015
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|Geographic subdivisions indicated for the distribution of Ribes amarum|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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