Carex scirpoidea |
Bulrush Sedge |
Key Characteristics
Small clumped sedge (10-40 cm) of alvar; leaves V-shaped in cross section; one spike per culm, male and female spikelets on separate culms; perigynia pubescent and reddish-brown in color.
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 |
---|---|---|
Alpena | 1 | 1981 |
Chippewa | 9 | 2001 |
Delta | 2 | 1990 |
Keweenaw | 1 | 1890 |
Mackinac | 2 | 1998 |
Presque Isle | 1 | 1999 |
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 on limestone pavement along Great Lakes shores and also inland in northern fen communities with marl.
Natural Community Types
Associated Plants
Beauty sedge, ebony sedge, dwarf lake iris, butterwort, northern white cedar, Arkansas mint, Kalm's lobelia, Houghton's goldenrod, butterwort, ragwort, horizontal juniper, white cedar, white and black spruce, tamarack, little bluestem, prairie dropseed, cat's foot, Canadian milk vetch, harebell, sedges, Indian paintbrush, field chickweed, bastard toad flax, grass, hair grass, prairie smoke, bee-balm, shrubby cinquefoil, and old field goldenrod.
Management
Primary management need is protection from excessive foot traffic and ORVs. The species thrives along shorelines under natural disturbance regimes.
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 first week of June to fourth week of August
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
- Flora of North America Editorial Committee. 2002. Flora of North America, North of Mexico. Volume 23: Magnoliaphyta: Commelinidae (in part): Cyperaceae. Oxford University Press, New York. 608pp.
- 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. 1972. Michigan Flora. Part I. Gymnosperms and Monocots. Bulletin of the Cranbrook Institute of Science and University of Michigan Herbarium. 488pp.