Photo by Michael R. Penskar 

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Key Characteristics

Prostrate mat-forming forb of calcareous seeps in the Grand Traverse and Mackinaw Straights area; leaves rounded and opposite, with coarsely toothed margins; tubular flowers (15-25 cm) with yellow petals and a red-spotted lower lip.

Status and Rank

• State Status: E - Endangered (legally protected)
• US Status: LE - Listed Endangered
• State Rank: S1 - Critically imperiled
• Global Rank: G5T1

Occurrences

County Name	Number of Occurrences	Year Last Observed
Benzie	1	2012
Charlevoix	1	2012
Cheboygan	4	2012
Emmet	3	2012
Leelanau	3	2012
Mackinac	4	2012

Updated 05/08/2013. 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.

Natural Community Types

• Rich conifer swamp

Associated Plants

Northern white cedar, balsam fir, tag alder, marsh-marigold, watercress, impatiens, jewelweed, and forget-me-not.

Management

This species requires maintenance of cold water source. Prevent disruptions to hydrology, including flow, oxygenation, turbidity.

General Survey Guidelines

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

Survey Methods

• Meander search

  Survey Period: From third week of June to third week of August

  Survey Comments: Often occurs with the non-native forget-me-not

Page Citation

More Information

References

Survey References

• Elzinga, C.L., D.W. Salzer, and J.W. Willoughby. 1998. Measuring and Monitoring Plant Populations. The Nature Conservancy and Bureau of Land Management, Denver. BLM Technical Reference 1730-1. 477pp.

• Goff, G.F., G.A. Dawson, and J.J. Rochow. 1982. Site examination for Threatened and Endangered plant species. Environmental Management 6(4): 307-316

• Nelson, J.R. 1984. Rare Plant Field Survey Guidelines. In: J.P. Smith and R. York. Inventory of rare and endangered vascular plants of California. 3rd Ed. California Native Plant Society, Berkeley. 174pp.

• Nelson, J.R. 1986. Rare Plant Surveys: Techniques For Impact Assessment. Natural Areas Journal 5(3):18-30.

• Nelson, J.R. 1987. Rare Plant Surveys: Techniques for Impact Assessment. In: Conservation and management of rare and endangered plants. Ed. T.S. Elias. California Native Plant Society, Sacramento. 8pp.

Technical References

• Gleason, H. A., and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second edition. The New York Botanical Garden, Bronx. 910pp.

• Gray, A. 1950. Gray's Manual of Botany; eighth ed. Van Nostrand Reinghold, New York. 1632pp.

• 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.

• Voss, E.G. 1996. Michigan Flora. Part III. Dicots (Pyrolaceae-Compositae). Bulletin of the Cranbrook Institute of Science and University of Michigan Herbarium. 622pp.

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