| Rhynchospora recognita |
| Globe Beak-rush |
Key Characteristics
Medium-sized clumped beak-rush (30-90 cm) of coastal plain marshes; leaves short, flat, and relatively wide (2-4 mm); inflorescence compact with several few-flowered spikelets; achenes transversely wrinkled.
Status and Rank
- State Status: E - Endangered (legally protected)
- State Rank: S1 - Critically imperiled
- Global Rank: G5? - Secure (inexact)
Occurrences
| County Name | Number of Occurrences | Year Last Observed |
|---|---|---|
| Allegan | 1 | 1995 |
| Branch | 1 | 1898 |
| St. Joseph | 1 | 1898 |
![Occurrence Map for [Sname]](https://webarchive.library.unt.edu/eot2008/20090116110920im_/http://web4.msue.msu.edu/mnfi/maptmp/NFR_Distributions12321039423632.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
Globe beak-rush is found in areas with a fluctuating water table such as coastal plain marshes, sandy lake edges, dune swales, seepages, sandy marshes, sandy and peaty edges of wetlands, and intermittent wetlands.
Natural Community Types
Associated Plants
Colic root, Indian grass, big bluestem, little bluestem, prairie willow, bushy aster, bluejoint grass, twig-rush, cross-leaved milkwort, sedge, and switch grass; often also associated with other coastal plain disjunct species such as tall beak-rush, Engelmann's spike-rush, flat-topped goldenrod, Maryland meadow beauty, panicled screwstem, short-fruited rush, and tall nut-rush.
Colic root, Indian grass, big bluestem, little bluestem, prairie willow, bushy aster, bluejoint grass, twig-rush, cross-leaved milkwort, sedge, switch grass; often associated with other coastal plain disjunct species such as tall beak-rush, Engelmann's spike-rush, flat-topped goldenrod, Maryland meadow beauty, panicled screwstem, short-fruited rush, tall nut-rush.
Management
This species requires conservation of habitat and protection of the hydrology, including maintenance of cyclical drawdown regime and water table. Fire may play a role in maintaining moist, open habitat. It is also vulnerable to ORV impacts and dredging and filling activities, as well as other types of recreational impacts like horse trails.
General Survey Guidelines
Survey Methods
- Meander search
Survey Period: From first week of July to fourth week of September
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
- Braun, E. L. 1967. The Monocotyledoneae of Ohio. Cat-tails to Orchids. Ohio State University Press, Columbus. 464pp.
- 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.
- Godfrey, R.K. and Wooten. 1981. Aquatic and Wetland Plants of Southeastern United States. Dicotyledons. University of Georgia Press, Athens. 712pp.
- 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.
- Mohlenbrock, R.H. 1986. Guide to the Vascular Flora of Illinois. Southern Illinois University Press, Carbondale. 507pp.
- Radford, A. E., H. E. Ahles, and C. R. Bell. 1968. Manual of the vascular flora of the Carolinas. University of North Carolina Press, Chapel Hill. 1183pp.
- Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region, 4th ed. Indiana Academy of Science, Indianapolis. 921pp.
- Voss, E. G. 1972. Michigan Flora. Part I. Gymnosperms and Monocots. Bulletin of the Cranbrook Institute of Science and University of Michigan Herbarium. 488pp.