Plants and Animals
Packera indecora Northern ragwort
Perennial forb of rocky shores and moist thickets in the western Upper Peninsula; leaves mostly basal and oval with toothed margins, stem leaves few and strongly pinnately dissected; flowers with yellow heads, rays usually absent.
Status and Rank
US Status: No Status/Not Listed
State Status: T - Threatened (legally protected)
Global Rank: G5 - Secure
State Rank: S1 - Critically imperiled
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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.
The rayless mountain ragwort is found in a variety of habitats including moist woods of conifers, cedar swamps, rocky lake shores, and cliffs. It grows in sun to partial shade.
Specific Habitat Needs
Edge needed in: Boreal forest.
Natural Community Types
- Boreal forest
- Dry-mesic northern forest
- Limestone bedrock lakeshore
- Rich conifer swamp
- Volcanic bedrock glade
- Volcanic bedrock lakeshore
- Volcanic cliff
- Volcanic cobble shore
- Volcanic lakeshore cliff
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.
Balsam fir, quaking aspen, wild rose, showy mountain ash, speckled alder, red-osier dogwood, American yew, bluegrass, wild strawberry, flat-topped goldenrod, big leaved aster, common yarrow, and harebell.
Primarily requires protection of the Lake Superior shoreline habitat and perpetuation of natural disturbance (winter ice, storms, wind) and hydrological regimes. This community occupies a stressed, potentially unstable environment; many of the species found in this community do not tolerate later stages of succession and require management that prevents woody plant encroachment. Where it occurs in wetland environments, protection of hydrology will be critical.
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 July to fourth week of August
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- Holmgren, N.H. 1998. Illustrated Companion to Gleason and Cronquist's Manual. Illustrations of the vascular plants of Northeastern United States and adjacent Canada. New York Botanical Garden, Bronx. 937pp.
- Scoggan, H.J. 1978. The Flora of Canada. National Museum of Natural Science Publications Botany 4: 1711pp.
- Voss, E.G. 1996. Michigan Flora. Part III. Dicots (Pyrolaceae-Compositae). Bulletin of the Cranbrook Institute of Science and University of Michigan Herbarium. 622pp.