Potentilla litoralis
Prairie cinquefoil
Image of Potentilla litoralis

Photo by Daniel C. Nepstad 

Key Characteristics

Small forb of rocky ridges and shores on Isle Royale and the Keweenaw; leaves pinnately compound with woolly, silvery-white hairs on the underside; flower yellow with 5 petals, calyx glandular.

Status and Rank

  • State Status: T
  • State Rank: S1
  • Global Rank: G5T5

Occurrences

County NameNumber of OccurrencesYear Last Observed
Keweenaw121994
Distribution map for Potentilla litoralis

Updated 1/31/2017. Information is summarized from MNFI's database of rare species and community occurrences. Data may not reflect true distribution since much of the state has not been thoroughly surveyed.

Habitat

Prairie cinquefoil is found in habitat with only sparse vegetation such as cliff-edges, rocky shores, and gravelly clearings. In Michigan, it is limited to Isle Royale and similar rocky shorelines in the Keweenaw.

Natural Community Types

Methodology

For each species, lists of natural communities were derived from review of the nearly 6,500 element occurrences in the MNFI database, in addition to herbarium label data for some taxa. In most cases, at least one specimen record exists for each listed natural community. For certain taxa, especially poorly collected or extirpated species of prairie and savanna habitats, natural community lists were derived from inferences from collection sites and habitat preferences in immediately adjacent states (particularly Indiana and Illinois). Natural communities are not listed for those species documented only from altered or ruderal habitats in Michigan, especially for taxa that occur in a variety of habitats outside of the state.

Natural communities are not listed in order of frequency of occurrence, but are rather derived from the full set of natural communities, organized by Ecological Group. In many cases, the general habitat descriptions should provide greater clarity and direction to the surveyor. In future versions of the Rare Species Explorer, we hope to incorporate natural community fidelity ranks for each taxon.

Feel free to send questions and comments to Brad Slaughter at slaugh14@msu.edu.

Associated Plants

Canada bluegrass, dandelion, cinquefoil, field pussy-toes, ticklegrass, yarrow, bearberry, marsh bellflower, pale Indian paintbrush, hair grass, spike-rush, butterwort, ninebark, silverweed, dwarf Canadian primrose, and wild rose.

Management

Primarily requires protection of the shoreline habitat and perpetuation of natural disturbance and hydrological regimes. This community occupies a stressed, potentially unstable environment; many of the species found in this community do not tolerate later stages of succession and require management that prevents woody plant encroachment. Protect from development.

General Survey Guidelines

Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgment of the investigator.

Survey Methods

Page Citation

Michigan Natural Features Inventory. 2007. Rare Species Explorer (Web Application). Available online at http://mnfi.anr.msu.edu/explorer [Accessed Apr 30, 2017]

References

Survey References

Technical References

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