Liatris squarrosa
Plains blazing star
Image of Liatris squarrosa

Photo by Brad Slaughter 

Key Characteristics

Small forb of dry prairies and savanna; stem erect, bearing numerous overlapping narrow leaves; inflorescence a spike of purple flowers heads, each head with 20 or more tubular florets and bracts below the heads wide-spreading; fruits with plume-like bristles arising from the top of the seed.

Status and Rank

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

Occurrences

County NameNumber of OccurrencesYear Last Observed
Wayne11904
Distribution map for Liatris squarrosa

Updated 7/21/2017. 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

This blazing star species is known only from one collection made in Palmer Park in Detroit in 1904.

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.

Associated Plants

No data are available concerning associates in Michigan.

Management

The species is known to the south in Ohio, and thus may possibly occur in prairie remnants in southeast Michigan. It would likely benefit from prescribed burning and other management to maintain prairie habitat.

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 Nov 17, 2017]

References

Survey References

Technical References

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