| Agoseris glauca |
| Prairie or pale agoseris |
Key Characteristics
Clumped perennial (20-70 cm) of pine barrens; leaves slender with pale midvein, toothless, up to 30 cm long; flowers yellow, one head per tall leafless stalk.
Status and Rank
- State Status: T - Threatened (legally protected)
- State Rank: S2 - Imperiled
- Global Rank: G5 - Secure
Occurrences
| County Name | Number of Occurrences | Year Last Observed |
|---|---|---|
| Crawford | 1 | 2004 |
| Montmorency | 4 | 1995 |
| Oscoda | 8 | 2003 |
| Otsego | 3 | 2002 |
![Occurrence Map for [Sname]](/mnfi/maptmp/NFR_Distributions12590200834956.png)
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
Occurs in pine barrens, jack pine savanna, jack pine-red oak savanna, and open shrub-grassland in central northern Lower Michigan.
Natural Community Types
Associated Plants
Rough fescue, big bluestem, little bluestem, blazing star, harebell, Hill's thistle, prairie willow, poverty grass, hair grass, yellow-pimpernel, sand cherry, sweet-fern, and blueberry.
Management
Prescribed burns are beneficial for this early successional species. Maintenance of openings via other means (mechanical tree and shrub removal) would likely also help perpetuate colonies. Furrowing and planting over areas with dense jack pine is not recommended, since severe soil disturbance and a dense canopy are detrimental to this species.
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 fourth week of May to fourth week of October
More Information
See MNFI Species AbstractReferences
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
- Flora of North America Editorial Committee. 2006. Flora of North America, North of Mexico. Volume 19: Magnoliophyta: Asteridae (in part): Asteraceae, part 1. Oxford University Press, New York. 579pp.
- 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.
- 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.