Ribes oxyacanthoides var. cognatum L.
Grossulariaceae (Currant family)

Introduction to Vascular Plants


© Virginia Skilton     (Photo ID #84205)


E-Flora BC Static Map

Distribution of Ribes oxyacanthoides var. cognatum
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Species Information

Deciduous shrub, loosely branched, 0.5-1.5 m tall; stems erect to spreading, bristly-hairy and usually with 1-3, slender, 0.8-1 cm long, nodal spines; bark yellowish brown to greyish-brown or grey.
Alternate, broadly egg-shaped, heart-shaped at the base, 1-5 cm wide, 3- to 5-lobed about half their length, the lobes rounded, deeply toothed, short glandular-hairy; stalks equal to or slightly longer than the blades, densely hairy and usually short glandular-hairy.
Inflorescence of usually 1-3 flowers in a drooping to spreading raceme much shorter than the leaves; flower stalks 1-3 mm long, not jointed below the flowers, glandular; petals whitish, egg-shaped, 2-3.5 mm long; hypanthium nearly cylindric to bell-shaped, 2-6 mm long; calyces pale greenish-white, glabrous to finely hairy; styles fused and soft-hairy to about midlength, about equaling the stamens.
Berries, round, reddish to deep-purplish blue, 1-1.2 cm long, glabrous.
Three subspecies occur in BC:

1. Flowers mostly 8-11 mm long with sepals extended; leaves not glandular below.................. ssp. irriguum (Dougl.) Sinnott

1. Flowers about 7 mm long with sepals extended; leaves usually glandular short-hairy below

2. Hypanthium 5-6 mm long, not or only slightly flared; petals (2.5) 3.0-3.5 mm long; plants rare in SC BC...................... ssp. cognatum (Greene) Sinnott
2. Hypanthium 2.5-3.5 mm long, bell-shaped, flared; petals 2.0-2.5 mm long; the widely distributed subspecies...................... ssp. oxyacanthoides

SourceThe Illustrated Flora of British Columbia

Habitat and Range

Moist woodlands, thickets and forest openings (ssp. cognatum and ssp. irriguum) or dry, open forest and rocky slopes (ssp. oxycanthoides) in the montane zone; frequent in BC east of the Coast-Cascade Mountains (ssp. oxycanthoides), infrequent in SC and SE BC (ssp. irriguum), rare in SC BC (ssp. cognatum); N to S AK, YT and NT, E to PQ and S to PA, IL, MN, NE and WY.

SourceThe Illustrated Flora of British Columbia