| Potentilla paradoxa |
| Sand cinquefoil |
Key Characteristics
Annual or short-lived perennial of sandy Lake Erie storm beaches; stems branched and reclining, with pinnately compound leaves, not white-hairy below; inflorescence much-branched, bearing terminal yellow flowers with small petals (5-7 mm long).
Status and Rank
- State Status: T - Threatened (legally protected)
- State Rank: SU - Unrankable
- Global Rank: G5 - Secure
Occurrences
| County Name | Number of Occurrences | Year Last Observed |
|---|---|---|
| Monroe | 1 | 1949 |
| Wayne | 1 | 1949 |
![County Distribution Map for [SNAME]](/tmp/Species_Distributions13693355006868.png)
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.
Habitat
Known only from a 1949 collection along a barrier beach in Monroe County, where it was found in loose sand. Elsewhere this species is known from prairies, shores, bottoms, and damp places.
Natural Community Types
- Sand and gravel beach
- Limestone cobble shore
- Lakeplain wet prairie
- Lakeplain wet-mesic prairie
- Mesic sand prairie
Associated Plants
No data are available concerning associates in Michigan.
Management
The primary need for this species is a status survey. If found, it would likely require maintenance of long-term shoreline processes like beach building and erosion. Protection from foot traffic and development would also be necessary.
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
- Meander search
Survey Period: From first week of July to fourth week of August
Page Citation
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. 1985. Michigan Flora. Part II. Dicots (Saururaceae-Cornaceae). Bulletin of the Cranbrook Institute of Science and University of Michigan Herbarium. 724pp.