Botrychium pallidum
pale moonwort

Key Characteristics

Small fern (10-15 cm) of meadows; leaf folded, small, dissected, pale green to whitish in color; fertile portion of stem 2-4 times the length of sterile leaf.

Status and Rank

  • State Status: SC
  • State Rank: S3
  • Global Rank: G3

Occurrences

County NameNumber of OccurrencesYear Last Observed
Marquette21996
Distribution map for Botrychium pallidum

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

Little specific habitat information available from the few Michigan collections, other than that it may range from open fields to shaded places.

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

Often occurs with other grape-ferns, including mingan moonwort, western moonwort, common moonwort, daisy-leaved moonwort, and spatulate moonwort.

Management

Very little is known of this species in Michigan. The primary need at present is additional inventory and compilation of community information.

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 Mar 28, 2017]

References

Survey References

Technical References