Tephroseris palustris
Marsh fleabane
Image of Tephroseris palustris

Photo by Robert R. Kowal 

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Key Characteristics

Perennial forb of moist lakeshores; stem soft, hollow and hairy, bearing coarsely toothed leaves that become sessile and clasping toward the top of the stem; flowers with large (1 cm long) yellow rays, borne in densely hairy clusters.

Status and Rank

  • State Status: X
  • State Rank: SX
  • Global Rank: G5

Occurrences

County NameNumber of OccurrencesYear Last Observed
Emmet11934
Distribution map for Tephroseris palustris

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

Known only from a single historical collection made in 1934 on the shore of Lake Michigan near Harbor Springs. Elsewhere this species is known from boreal swamps, wet soils, shorelines, and pond margins.

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

No data are available concerning associates in Michigan.

Management

A status survey may be warranted for this boreal disjunct, which may persist along northern Great Lakes shores. If found, it would likely benefit from protection of its shoreline habitat, especially from excessive foot traffic and 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 Mar 28, 2017]

References

Survey References

Technical References