PROTECTING WISCONSIN'S BIODIVERSITY

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

Lapland Buttercup (Ranunculus lapponicus)

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Photo by Emmet Judziewicz

 

Counties with Mapped NHI Occurrences

Lapland Buttercup (Ranunculus lapponicus), a Wisconsin Endangered plant, is found in white cedar swamps. It is usually found near or within mucky depressions, seeps, groundwater springs, and similar cool, wet pockets, particularly where Sphagnum mosses are abundant and form extensive beds. Blooming occurs throughout June, fruiting throughout July. The optimal identification period for this species is throughout June.

Coptidium lapponicum

 
 
 

Lapland buttercup is an erect forb, 1-2dm tall with yellow or white flowers that are 8-12mm wide, mostly with 5 petals and 3 sepals, and numerous pistils and stamens. Its achene is oblong, 2-3mm, swollen below, flattened above. Beak is slender, sharply curved or hooked. Leaves are petioled, kidney-shaped, deeply 3-parted, cauline leaf solitary or absent, smaller and short-petioled if present. It has elongate rhizomes that bear a solitary stem at each node and 1 or 2 basal leaves.

Its deeply 3-parted leaves and 1cm-wide flowers distinguish it from similar species.

Rhizomatous. Blooming occurs throughout June, fruiting throughout July.

Perennial. The optimal identification period is throughout June.

Associated species include Thuja occidentalis, Calypso bulbosa, Carex tenuiflora, C vaginata, Mitella nuda, and Coptis trifolia.

Lapland buttercup prefers wet soils and is found in white cedar swamps, usually near or within mucky depressions, seeps, groundwater springs, or similar cool, wet pockets, particularly where Sphagnum mosses are abundant and form extensive beds.

Avoid known individual plant locations and conduct operations elsewhere when they are least likely to cause damage. Ideally, this would involve frozen, snow-covered ground. However, in areas of the state where frozen conditions are unreliable, very dry soils late in the growing season might be the best available alternative. Consult with a biologist, if needed.

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.

Minimize disturbance to hydrology, including soil disturbance from rutting.

Avoid rapid and dramatic reductions in canopy cover and, basal area, in wet areas to reduce risk of swamping.

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.