Photo by Ryan P. O'Connor
Tall forb (1 m) of moist prairies; leaves large, pinnately compound with a deeply divided, serrated terminal leaflet; flowers pink, showy, in bushy terminal clusters.
Status and Rank
- State Status: T
- State Rank: S2
- Global Rank: G4G5
|County Name||Number of Occurrences||Year Last Observed|
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.
Known primarily within the state distribution from prairie fens in southwest Lower Michigan, principally in glacial interlobate areas where these alkaline, groundwater fed systems usually occur, especially in association with lake and river complexes and other large drainages.
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.
Larch, grass-of-parnassus, shrubby cinquefoil, Virginia mountain mint, Ohio goldenrod, Riddell's goldenrod, Indian grass, hardstem bulrush, three-square, twig-rush, prairie dropseed, small white lady's slipper, bog valerian, edible valerian, rush, golden-seeded spike-rush, spike-rush, joe-pye weed, pitcher-plant, sun dew, Sphagnum mosses, common boneset, little bluestem, big bluestem, blue-joint grass, whorled loosestrife, black-eyed Susan, marsh fern, bog birch, dogwoods, willows, alder-leaved buckthorn, meadowsweet, water hemlock, bog clearweed, strict sedge, and marsh bellflower.
Requires protection of hydrology, groundwater source, and natural disturbance regime. This species benefits from fen management that includes prescribed fire and brush removal, which maintains open habitat and reduces competing woody vegetation. Control invasive species, especially glossy buckthorn, a common invader of this type of habitat. Protect habitat from being drained and developed.
General Survey Guidelines
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgment of the investigator.
- Meander search
Survey Period: From third week of June to fourth week of September
More InformationSee MNFI Species Abstract
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