Sisyrinchium hastile

Key Characteristics

Small loosely clustered forb of moist sands; stems slender, unbranched, not winged; flowers blue, loosely clustered, subtended by a two pairs of long bracts, the inner ones 2-3 cm long.

Status and Rank

  • State Status: X
  • State Rank: SNA
  • Global Rank: GUGHQ


County NameNumber of OccurrencesYear Last Observed
Distribution map for Sisyrinchium hastile

Updated 5/15/2018. 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.


This blue-eyed grass was found on sandy shores on Belle Isle in 1896. Recent taxonomic work indicates this may not be a valid species and it has been proposed for delisting.

Natural Community Types


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.


Though this is possibly a dubious species, it may persist in southeast Michigan and could still be sought along the Detroit River, although the area is heavily developed. If found, habitat protection would be the first priority.

General Survey Guidelines

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

Survey Methods

Page Citation

Michigan Natural Features Inventory. 2007. Rare Species Explorer (Web Application). Available online at [Accessed Aug 16, 2018]

More Information

See MNFI Species Abstract


Survey References

Technical References

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