Plants and Animals
Erigeron hyssopifolius Hyssop-leaved fleabane
Small forb (30 cm) of northern fens and calcareous shores; stem with numerous narrow, tapering leaves; flowers in a single head with numerous white rays and a yellow disk.
Status and Rank
US Status: No Status/Not Listed
State Status: T - Threatened (legally protected)
Global Rank: G5 - Secure
State Rank: S1 - Critically imperiled
|County||Number of Occurrences||Year Last Observed|
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.
Very local in calcium-rich fens and marly openings within northern white-cedar swamps in the Mackinac Straits. One recently documented population occurs on volcanic bedrock along Lake Superior in Keweenaw County.
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.
Butterwort, bulrush sedge, northern white cedar, Richardson's sedge, spikerush, linear-leaved sundew, black spruce, tamarack, small cranberry, shrubby cinquefoil, swamp laurel, leatherleaf, and false asphodel.
Primarily requires protection of northern fen habitat, including perpetuation of hydrological and natural disturbance regime; needs open, wet, marly habitat. Protect from excessive foot traffic and ORVs. May be sensitive to cutting and harvesting of northern white cedar.
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgment of the investigator.
Survey Period: From first week of June to fourth week of July
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- Scoggan, H.J. 1978. The Flora of Canada. National Museum of Natural Science Publications Botany 4: 1711pp.
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