Sabatia angularis
Rosepink
Image of Sabatia angularis

Photo by Susan R. Crispin 

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Key Characteristics

Robust forb (up to 80 cm) of moist sandy shores; stems strongly 4-sided with narrow wings on the angles, bearing opposite broadly ovate leaves that clasp the stem; flowers rose-pink with 5 petals uniting to form a short floral tube.

Status and Rank

  • State Status: T
  • State Rank: S2
  • Global Rank: G5

Occurrences

County NameNumber of OccurrencesYear Last Observed
Berrien82010
Cass11985
Kalamazoo51997
St. Joseph62009
Van Buren11915
Washtenaw11963
Distribution map for Sabatia angularis

Updated 7/21/2017. 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

Rose-pink is found along moist sandy shores, in depressions in dunes, in marshy ground, and on the edges of lakes.

Specific Habitat Needs

needed in Coastal plain marsh

Natural Community Types

Methodology

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

Bulrush, soft-stemmed rush, cut grass, swamp rose, steeplebush, wool-grass, black willow, beak-rush, bluejoint grass, twig-rush, sedges, bushy aster, black-fruited spike-rush, umbrella-grass, northern clubmoss, panic grass, cross-leaved milkwort, bald rush, tall beak-rush, tooth-cup, netted nut-rush, hyssop hedge nettle, marsh St John's-wort, pipewort, autumn sedge, and meadow beauty. The shrub margin may include red maple, black gum, pin oak, black chokecherry, dogwoods, and buttonbush.

Management

This species requires conservation of habitat and protection of the hydrology, including maintenance of cyclical drawdown regime and water table. Maintain moist, open habitat. It is also vulnerable to ORV impacts and dredging and filling activities.

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

Page Citation

Michigan Natural Features Inventory. 2007. Rare Species Explorer (Web Application). Available online at http://mnfi.anr.msu.edu/explorer [Accessed Nov 21, 2017]

More Information

See MNFI Species Abstract

References

Survey References

Technical References

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