Ribes lacustre (Pers.) Poir.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Stems very spiny on the internodes, with clusters of longer nodal spines; petioles glandular and hairy; blades deeply 3–5-lobed and coarsely toothed, glabrous or nearly so; racemes loosely spreading or drooping; rachis, pedicels, ovary and fr glandular-bristly; hypanthium above the ovary broadly cupulate, 1 mm, glabrous; sep broadly cuneate-obovate, 2 mm, wider than long; pet flabellate to half-orbicular, 1.5 mm; stamens inserted just above the ovary, equaling the pet; style bifid to the middle; fr dark purple or black; 2n=16. Swamps and wet woods; Lab. to Alas., s. to Mass., Pa., Mich., Minn., and the western cordillera. May, June. (Limnobotrya l.)