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Key to RibesView taxon page for Ribes
(For a list of species in Ribes, use the above link.) Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots. 2. Hypanthium disk- or saucer-shaped, barely exceeding ovary 3. Leaves evergreen, lobes  1. A major expansion or bulge, such as on the margin of a leaf, sepal, or petal, or on the surface of an ovary. 2. The free tips of otherwise fused structures, such as sepals or petals; larger than teeth. 0 or very shallow; sw PR, s ChI (Santa Catalina Island) ..... R. viburnifolium 3' Leaves deciduous, lobes deep; mainland 4. Ovary, fruit, leaf  Organ arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). blade  Expanded portion of a leaf, petal, or other structure, generally flat but sometimes rolled, cylindric, wavy, or cupped. abaxially with stalked glands; stem spreading  Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal. or decumbent  lying mostly flat on the ground but with tips curving up. ..... R. laxiflorum 4' Ovary, fruit, leaf blade abaxially with sessile  Without a petiole, peduncle, pedicel, or other kind of stalk. glands; stem ± erect  Upright; vertically oriented. 2' Hypanthium cup- to tube-shaped, clearly exceeding ovary 6' Sepals white or white-green to pink, red, or purple 8. Anther tip rounded or blunt, with cup-like depression 9. Hypanthium < 2 × longer than wide; stamens inserted at level of petals; fruit black to glaucous ..... R. viscosissimum 9' Hypanthium > 2 × longer than wide; stamens inserted below level of petals; fruit red ..... R. cereum 10. Bract tip ± truncate  Abruptly (not gradually) narrower or smaller at base or tip, as if cut straight across or nearly so. , with several prominent teeth, sides entire  Having margins that are continuous and smooth (i.e., without teeth, lobes, etc.). ; styles generally hairy ..... var. cereum 10' Bract tip acute  Having a short-tapered, sharp tip, the sides convex or straight and converging at less than a right angle. , each side with 1–3 shallow teeth; styles glabrous ..... var. inebrians 8' Anther tip rounded, blunt, or shallowly notched, without cup-like depression 11. Styles glabrous at base 12. Sepals erect; hypanthium  Structure generally in the shape of a tube, cup, or bowl, derived from the fused lower portions of the perianth and stamens, from which these parts seem to arise, and to which the ovary wall is fused in an inferior ovary (to which the ovary wall is partially fused in a half-inferior ovary; from which the ovary is free in a superior ovary). ± as long as wide ..... R. nevadense 11' Styles hairy, at least at base 14' Hypanthium ± longer than wide; styles fused at least in basal  At or near the base of a plant or plant part. Especially said of leaves clustered near the ground or of a placenta confined to the base of an ovary. 1/2; inflorescence a raceme  In flowering plants excluding Asteraceae, Cyperaceae, Poaceae, and some other groups, an unbranched inflorescence in which the flowers are borne on pedicels and nearly always open from the bottom to the top of the inflorescence. 2. In Asteraceae, Cyperaceae, Poaceae, and some other groups, a raceme-like inflorescence is one in which the inflorescence units (e.g., heads in Asteraceae; spikelets in Cyperaceae and Poaceae), instead of individual flowers, are stalked and attached directly to the main axis of the inflorescence, not to branches, and in which floral development may or may not proceed as in 1. , open 1' Nodal spines present (sometimes 0 on some shoots) 17. Inflorescence generally > 5-flowered; hypanthium disk- or saucer-shaped; pedicel  Stalk of an individual flower in an inflorescence, or the corresponding structure in fruit. jointed to ovary 17' Inflorescence < 5-flowered; hypanthium cup- to tube-shaped; pedicel not jointed to ovary 19' Sepals 5, spreading or reflexed  Abruptly bent or curved downward or backward. 20. Anthers not exceeding petals 21. Stem low, spreading; internode  Segment of an axis (generally a stem) between successive positions (nodes) from which one or more structures (especially leaves, buds, branches, or flowers) arise. bristles glandular ..... R. tularense 21' Stem erect or arched; internode bristles 0 22' Ovary hairs generally 0 or inconspicuous, generally short, generally nonglandular 23' Hypanthium longer than wide 20' Anthers exceeding petals 25. Styles hairy at least at base 26' Calyx green-white, purple at base or not; filaments exceeding petals by < 2 mm ..... R. inerme 25' Styles glabrous at base 29' Petals white to pink, flat or abaxially shallowly concave or margins curled inward, nearly touching or not, tip not hooded 30' Petal margins curled inward, nearly touching or not; stem ± erect 31. Anthers oblong  Longer than wide, with nearly parallel sides; wider than linear. , tips blunt or rounded; styles ± not exceeding anthers 32. Anthers slightly longer than wide when dehisced, with sessile glands abaxially; internodal bristles 0 ..... R. lobbii 32' Anthers much longer than wide when dehisced, glabrous; internodal bristles present ..... R. sericeum 31' Anthers lanceolate  Narrowly elongate, widest in the basal half, often tapered to an acute tip. to ovate  Egg-shaped (i.e., widest below the middle) in two dimensions (i.e., in one plane), as a leaf. , tips acute or mucronate; styles exceeding anthers 33. Leaf blade abaxially glandular 34' Internodal bristles present; hypanthium generally ± as long as wide 33' Leaf blade abaxially nonglandular 37' Hypanthium longer than wide 40' Hypanthium, leaf blade abaxially hairy or densely white-hairy
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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, https://ucjeps.berkeley.edu/eflora/ [accessed on ]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .
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