Phlox maculata
Wild sweet William
Photo by Gary Reese
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Key Characteristics

Slender forb of moist prairies and fens; stem red-spotted and glabrous, bearing opposite lanceolate leaves; flower reddish-purple with 5 petals uniting to form a glabrous floral tube.

Status and Rank

  • State Status: T - Threatened (legally protected)
  • State Rank: S1 - Critically imperiled
  • Global Rank: G5 - Secure

Occurrences

County NameNumber of OccurrencesYear Last Observed
Berrien52007
Cass11958
St. Joseph11950
Occurrence Map for [Sname]

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

Spotted phlox is found in alkaline sites, including prairie fens, meadows, bottomlands, streambanks, and moist ditches.

Natural Community Types

Associated Plants

Tamarack, 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.

Management

This plant requires protection of hydrology, groundwater source, and natural disturbance regimes. This species benefits from fen management that includes prescribed fire and brush removal, which maintains open habitat and reduces competing woody vegetation. Control of invasive species such as glossy buckthorn, which is a common invader of this type of habitat, is also recommended. The habitat is also vulnerable to being drained or filled.

General Survey Guidelines

Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgment of the investigator.

Survey Methods

References

Survey References

Technical References

Page Citation

Michigan Natural Features Inventory. 2007. Rare Species Explorer (Web Application). Available online at http://web4.msue.msu.edu/mnfi/explorer [Accessed Feb 9, 2010]