Buchnera americana
Bluehearts
Image of Buchnera americana

Photo by Brad Slaughter 

Key Characteristics

Perennial forb of sandy prairies; leaves lanceolate and very scabrous; flowers tubular, bluish-purple in color.

Status and Rank

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

Occurrences

No known occurrences in Michigan

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

Little available habitat data for Michigan collections; noted as occurring in "openings", which may have been oak barrens or oak savanna; elsewhere this species inhabits the margins of wet swales, sandy meadows and sand dunes, well-drained open woodlands, prairies, and dry, gravelly hill prairies. This species has not been collected in Michigan since 1838.

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

Virtually no data are available for Michigan. In the Chicago region, this species occurs with such species as Riddell's goldenrod, Ohio goldenrod, shrubby St John's-wort, big and little bluestem, and Indian grass.

Management

Extant populations are known in Indiana in oak barrens near the south shore of Lake Michigan. Protection and management of potential habitat may be the best management option. Maintaining natural disturbances associated with "prairie / barren" habitat such as prescribed fire or brush removal to prevent woody plant succession are recommended. Much of this habitat type has been lost or severely degraded.

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 http://mnfi.anr.msu.edu/explorer [Accessed Aug 21, 2017]

References

Survey References

Technical References

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