Scutellaria incana
Skullcap

Key Characteristics

Small forb; long-petioled leaves ovate with a rounded base, softly pubescent and dotted with glands on the underside; flowers blue, tubular, borne in terminal racemes; calyx with short, appressed hairs.

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

Downy skullcap is known only from three historical collections. The habitat was noted only as dry woods and thickets. Since the specimens have no locality listed other than Michigan, it is impossible to map them even to a county, though they likely occurred in southern Michigan since the species is known from northern Indiana and Ohio. Even the date the species was last seen in the state is unknown, though it may be as distant at 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

No data are available concerning associates in Michigan.

Management

A status survey may be warranted to determine if populations persist. If found, the species would likely benefit from activities that maintain savannas and barrens such as prescribed burning and brush control.

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 Oct 19, 2017]

References

Survey References

Technical References

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