Ribes hudsonianum

Northern Black Currant

Flower Side

Good Spirit Lake Provincial Park

Note the pedicel is much longer than the bract.  The bases of the sepals, petals, and stamens are fused to form a hypanthium.  Note the scattered, yellow, sessile glands on the ovary and hypanthium.  

The Ribes genus was previously placed within a traditional version of the Saxifragaceae family which included a great many diverse genera.  That version of the Saxifragaceae family is now considered to be polyphyletic, and the family is now much reduced.  Ribes has been moved to a new family called Grossulariaceae, within which Ribes is the only genus.  Budd's Flora (1987) still places Ribes in Saxifragaceae, while Flora of Alberta (1994) places it in Grossulariaceae.


Hudsonianum: Answers to key questions in Budd's Flora (BF)  and Flora of Alberta (FOA) leading to this species. 
bulletstems not spiny, or spines only at the nodes; NOT [stems densely spiny along the internodes] (BF)
bulletstems not prickly; NOT [stems more or less prickly] (FOA)
bulletstems not bristly; NOT [stems usually bristly] (FOA)
bulletleaves plicate (folded) in the bud; NOT [leaves convolute (rolled) in the bud]
bulletNOT [plants with leaves, young stems, inflorescence and fruits all glandular-puberulent]
bulletleaves dotted beneath with resinous glands or bearing stalked glands; NOT [leaves without resinous glands]
bulletinflorescence an elongated raceme, flowers numerous; NOT [inflorescence a reduced raceme, 1- to 3- flowered]
bulletpedicels much longer than the bracts; NOT [pedicels much shorter than the bracts]
bulletpedicels jointed below the ovary
bulletflowers regular; NOT [flowers slightly irregular]
bullethypanthium-tube broadly cup-shaped; NOT [hypanthium-tube tubular to narrowly cup-shaped]
bulletflowers not golden yellow; NOT [flowers golden yellow to somewhat reddish]
bulletsepals white; NOT [sepals greenish white or yellowish]
bulletovary usually with a few sessile glands; NOT [ovary lacking sessile glands]
bulletovary and fruit glabrous; NOT [ovary and fruit more or less densely glandular pubescent]
bulletfruits black when mature; NOT [fruits reddish or blue-black when mature]



Grossulariaceae: Answers to key questions in Flora of Alberta leading to this family.  Note these answers only apply to the unarmed members of the family.
bulletshrubs; NOT [herbs]
bulletplants NOT aquatic
bulletplants green; NOT [plants white, pink or reddish brown]
bulletplants unarmed; NOT [plants armed with prickles, spines or thorns]
bulletleaves alternate; NOT [leaves opposite or whorled]
bulletleaves well developed; NOT [leaves reduced to scales]
bulletleaves not needle-like; NOT [leaves needle-like 5-10 mm long]
bulletperianth biseriate (i.e. of two different series of appendages, the inner generally larger, coloured, the outer generally smaller, greenish); NOT [perianth uniseriate (i.e. of only one series of appendages all more or less the same) or entirely absent]
bulletcorolla of separate petals; NOT [corolla of united petals, or only 2 or 3 petals connate or united and the flowers markedly irregular] (Note: the bases of the sepals, petals, and stamens of Grossulariaceae are fused to create a hypanthium which arises from the top of the inferior ovary.  Above the hypanthium the petals are distinct.)
bulletstamens alternate with the petals; NOT [stamens opposite the petals]
bulletstamens 5
bulletovary inferior; NOT [ovary superior]
bulletfruit yellow, red or black; NOT [fruit white or orange-red]
bulletfruit several-seeded; NOT [fruit 1-seeded]
bulletNOT [plants 1-2 dm tall, with small appressed leaves; pubescent; flowers yellow; of sandy habitats]