Platanthera ciliaris
Orange- or yellow-fringed orchid
Image of Platanthera ciliaris

Photo by Gary Reese 

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Key Characteristics

Stout orchid (up to 1 m) of bogs and occasionally other moist habitats; stem leafy, with larger lanceolate leaves at base; flowers orange with a prominently fringed lower lip, clustered on a terminal stalk.

Status and Rank

  • State Status: E
  • State Rank: S1S2
  • Global Rank: G5


County NameNumber of OccurrencesYear Last Observed
St. Clair11903
St. Joseph21936
Van Buren21983
Distribution map for Platanthera ciliaris

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.


Orange-fringed orchid is found in acidic soils, primarily in sphagnum bogs but occasionally at fen margins or, at least historically, moist sandy prairies.

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

Sphagnum moss, sedges, leatherleaf, bog rosemary, wild calla, round leaved sundew, cotton grass, swamp-laurel, large cranberry, small cranberry, three-leaved false Solomon's seal, yellow lady's-slipper, showy lady's slipper, Labrador tea, heart-leaved twayblade, and blunt-leaf orchid, black spruce, chokecherry, larch, marsh fern, pitcher-plant, and bog birch.


To preserve this species, protect wetland hydrology and natural disturbance regime. It may respond positively to prescribed fire. Agricultural field run-off should be prevented.

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 Sep 24, 2018]

More Information

See MNFI Species Abstract


Survey References

Technical References

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