PROTECTING WISCONSIN'S BIODIVERSITY

 
 
   
 
Scientific Name Common Name Global Rank State Rank Federal Status WI Status

Canadian Gooseberry (Ribes oxyacanthoides ssp. oxyacanthoides)

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Photo by William S. Alverson

 

Counties with Mapped NHI Occurrences

Canadian Gooseberry (Ribes oxyacanthoides ssp. oxyacanthoides), a Wisconsin Threatened plant, is found in cool, open habitats such as talus forests, bluff edges, and moist flats between dunes. Blooming occurs early-May through early-June, fruiting late-June through late-July. The optimal identification period for this species is late-May through June.

Ribes oxyacanthoides var. oxyacanthoides

 
 
 

Canadian gooseberry is a shrub, 1-1.5m tall, with small flowers in small clusters or racemes. Flower petals are white, obovate, and 2-3mm, sepals are oblong, smooth, blunt, and 2.5-4mm, stamens are equal to slightly longer than the petals, but shorter than the sepals. Fruits are smooth, greenish-purple, many-seeded berries. Leaves are 1.5-3cm long by 2-3.5cm wide, glandular and hairy at least beneath, and broadly wedge- to square-shaped at the base.

Its stamens that are equal to or slightly exceeding the petals, but shorter than the sepals differentiate it from similar species.

Blooming occurs early-May through early-June, fruiting late-June through late-July.

Perennial. The optimal identification period for this species is late-May through June.

Associated species include Viburnum edule, Acer spicatum, Thuja occidentalis, Populus balsamifera, Ribes glandulosum, R americanum, and Sambucus canadensis,

Canadian gooseberry prefers moist soils and is found in cool, open habitats such as talus forests, bluff edges, and moist flats between dunes.

Avoid broadcast spraying of herbicides and use care with spot spraying.

Avoid direct disturbance to sensitive microsites such as seeps, cliffs, and moss-covered boulders.

This species overwinters above ground, meaning that seasonal restrictions like conducting the a project on frozen ground will not result in avoidance. Therefore, known individual plant locations should be avoided year-round. Consult with a biologist, if needed.

Avoid (moist or dry) cliffs, rocky areas, slopes, outcrops, ridges, or ledges within forests.

Follow BMPs, especially around streams and use care near ravines, steep slopes, cliffs, rock outcrops, etc.

Buffer management around unique microhabitats such as ephemeral ponds, seeps, etc.

Species of Greatest Conservation Need (SGCN) are associated with habitats (or natural communities) and places on the landscape. Understanding relationships among SGCN, natural communities and ecological landscapes help us make decisions about issues affecting SGCN and their habitat and how to respond. Download the Wildlife Action Plan association score spreadsheet to explore rare species, natural communities and ecological landscape associations

Conservation actions respond to issues or threats, which adversely affect species of greatest conservation need (SGCN) or their habitats. Besides actions such as restoring wetlands or planting resilient tree species in northern communities, research, surveys and monitoring are also among conservation actions described in the Wisconsin Wildlife Action Plan because lack of information can threaten our ability to successfully preserve and care for natural resources.