Carex aggregata - Mackenzie
Glomerate Sedge
Other English Common Names: smooth clustered sedge
Taxonomic Status: Accepted
Related ITIS Name(s): Carex aggregata Mackenzie (TSN 39483)
French Common Names: carex aggloméré
Unique Identifier: ELEMENT_GLOBAL.2.152309
Element Code: PMCYP030A0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Sedge Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Monocotyledoneae Cyperales Cyperaceae Carex
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Carex aggregata
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 05Apr1985
Global Status Last Changed: 05Apr1985
Rounded Global Status: G5 - Secure
Nation: United States
National Status: NNR
Nation: Canada
National Status: N1 (04Oct2017)

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Alabama (S1), Arkansas (S1), Delaware (S4), District of Columbia (SH), Illinois (S2?), Indiana (SNR), Iowa (S2), Kansas (SNR), Kentucky (S4?), Maryland (SNA), Michigan (SNR), Missouri (SNR), Nebraska (SNR), New Jersey (S2), New York (S2), North Carolina (SNR), Ohio (SNR), Oklahoma (SNR), Pennsylvania (SNR), South Dakota (SH), Tennessee (SNR), Virginia (S4?), West Virginia (S2)
Canada Ontario (S1)

Other Statuses

Committee on the Status of Endangered Wildlife in Canada (COSEWIC): Candidate (High) (10Jul2017)

NatureServe Global Conservation Status Factors

Range Extent Comments: Carex aggregata occurs from New York west to southern Ontario, Michigan (probably adventive), Minnesota, and South Dakota south to North Carolina, Tennessee, Alabama, Missouri, and Oklahoma (Voss 1972, Oldham and Crins 1988, Ball 2002).

Number of Occurrences: > 300

Number of Occurrences with Good Viability/Integrity: Very many (>125)

Other NatureServe Conservation Status Information

Distribution
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Global Range: Carex aggregata occurs from New York west to southern Ontario, Michigan (probably adventive), Minnesota, and South Dakota south to North Carolina, Tennessee, Alabama, Missouri, and Oklahoma (Voss 1972, Oldham and Crins 1988, Ball 2002).

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AL, AR, DC, DE, IA, IL, IN, KS, KY, MDexotic, MI, MO, NC, NE, NJ, NY, OH, OK, PA, SD, TN, VA, WV
Canada ON

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
AR Benton (05007), Carroll (05015), Fulton (05049), Newton (05101), Sharp (05135), Washington (05143)
IA Allamakee (19005)*, Appanoose (19007), Benton (19011), Black Hawk (19013), Boone (19015), Bremer (19017), Calhoun (19025), Cedar (19031), Clarke (19039)*, Clayton (19043)*, Decatur (19053), Delaware (19055)*, Dickinson (19059)*, Dubuque (19061), Fayette (19065), Fremont (19071), Grundy (19075)*, Guthrie (19077), Hamilton (19079), Hancock (19081)*, Hardin (19083), Iowa (19095), Jasper (19099)*, Jefferson (19101)*, Johnson (19103)*, Jones (19105), Kossuth (19109)*, Linn (19113), Lucas (19117), Mahaska (19123), Marion (19125)*, Mills (19129), Monona (19133), Muscatine (19139), Page (19145), Plymouth (19149), Poweshiek (19157), Scott (19163), Story (19169), Tama (19171), Taylor (19173), Van Buren (19177)*, Wapello (19179)*, Warren (19181), Washington (19183), Webster (19187), Winnebago (19189)*, Winneshiek (19191), Woodbury (19193)
NJ Burlington (34005), Camden (34007)*, Cumberland (34011)*, Gloucester (34015)*, Hunterdon (34019), Mercer (34021)*, Salem (34033)*, Sussex (34037)
NY Jefferson (36045)*, Onondaga (36067), Rockland (36087)*
SD Day (46037)*
WV Greenbrier (54025)*, Jefferson (54037), Kanawha (54039)*, Monongalia (54061)*, Monroe (54063), Preston (54077), Summers (54089), Webster (54101)*
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
02 Rondout (02020007)+, Hackensack-Passaic (02030103)+, Raritan (02030105)+*, Middle Delaware-Musconetcong (02040105)+, Lower Delaware (02040202)+, Cohansey-Maurice (02040206)+*, Shenandoah (02070007)+, Upper James (02080201)+
04 Seneca (04140201)+, Chaumont-Perch (04150102)+*
05 Upper Monongahela (05020003)+*, Cheat (05020004)+, Lower Monongahela (05020005)+*, Middle New (05050002)+, Greenbrier (05050003)+*, Elk (05050007)+*, Lower Kanawha (05050008)+*, Coal (05050009)+*
07 Upper Iowa (07060002)+, Turkey (07060004)+, Apple-Plum (07060005)+, Maquoketa (07060006)+, Copperas-Duck (07080101)+*, Lower Wapsipinicon (07080103)+, South Skunk (07080105)+, North Skunk (07080106)+, Skunk (07080107)+, Upper Cedar (07080201)+, Shell Rock (07080202)+, Winnebago (07080203)+*, Middle Cedar (07080205)+, Lower Cedar (07080206)+, Upper Iowa (07080207)+, Middle Iowa (07080208)+*, Lower Iowa (07080209)+, Lower Rock (07090005)+*, East Fork Des Moines (07100003)+*, Middle Des Moines (07100004)+, Boone (07100005)+, North Raccoon (07100006)+, South Raccoon (07100007)+, Lake Red Rock (07100008)+, Lower Des Moines (07100009)+
10 Middle Big Sioux Coteau (10170201)+*, Lower Big Sioux (10170203)+, Blackbird-Soldier (10230001)+, Little Sioux (10230003)+, Monona-Harrison Ditch (10230004)+, Maple (10230005)+, West Nishnabotna (10240002)+, East Nishnabotna (10240003)+, Platte (10240012)+, Thompson (10280102)+, Upper Chariton (10280201)+
11 Beaver Reservoir (11010001)+, Buffalo (11010005)+, Spring (11010010)+, Elk (11070208)+*, Illinois (11110103)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History Not yet assessed
Help
General Description: Carex aggregata is a tufted, perennial, grass-like plant. It has long strap-like leaves that are up to 3.5 to 5.0 mm wide. From the tufts of leaves at the base of the plant, a stem 20-100 cm tall arises. Leaves come off of this stem and at the top of the stem is a dense cluster of flowers/fruits. The flower/fruit cluster is 1.5-5 cm long, 8-13 mm wide, and contains many numerous, small, and inconspicuous flowers. Small (3.4-4.6 mm long) green fruits (perigynia) form from the flowers (Ball 2002).
Economic Attributes Not yet assessed
Help
Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
Help
U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 09Feb2006
NatureServe Conservation Status Factors Author: Weldy, Troy W.

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Argus, G.W., K.M. Pryer, D.J. White and C.J. Keddy (eds.) 1982-1987. Atlas of the Rare Vascular Plants of Ontario. Four parts. National Museum of Natural Sciences, Botany Division, Ottawa. Looseleaf.

  • Ball, P.W. 2002. Carex Linnaeus sect. Phaestoglochin Dumortier. Pages 285-297 in Flora of North America Editorial Committee (editors), Flora of North America, north of Mexico, Volume 23, Magnoliophyta: Commelinidae (in part): Cyperaceae. Oxford University Press, New York, New York, USA. 608pp + xxiv.

  • Deam, C. C. 1940. Flora of Indiana. Division of Forestry, Dept. of Conservation, Indianapolis, Indiana. 1236 pp.

  • Duffe, J.A. 2006. Impacts of double-crested cormorant nesting on western Lake Erie Islands. Thesis submitted to Faculty of Graduate Studies and Research, Department of Biology, Carleton University. 108 pp.

  • Ediger, R.I. 1966. A chromatographic comparison of three species of Carex in Kansas. Transactions of the Kansas Academy of Science 69(1):152-156.

  • Fernald, M.L. 1950. Gray's manual of botany. 8th edition. D. Van Nostrand, New York. 1632 pp.

  • Flora of North America Editorial Committee. 2002b. Flora of North America north of Mexico. Vol. 23. Magnoliophyta: Commelinidae (in part): Cyperaceae. Oxford Univ. Press, New York. xxiv + 608 pp.

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

  • Hebert, C.E., J. Duffe, D.V.C. Weseloh, E.M.T. Senese, and G.D. Haffner. 2005. Unique Island Habitats May Be Threatened by Double-Crested Cormorants. Journal of Wildlife Management 69 (1): 68-76; 2005. 8 pp.

  • Holmgren, Noel. 1998. The Illustrated Companion to Gleason and Cronquist's Manual. Illustrations of the Vascular Plants of Northeastern United States and Adjacent Canada. The New York Botanical Garden, Bronx, New York.

  • Kartesz, J. T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 volumes. Timber Press, Portland, Oregon.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Kartesz, J.T. 1996. Species distribution data at state and province level for vascular plant taxa of the United States, Canada, and Greenland (accepted records), from unpublished data files at the North Carolina Botanical Garden, December, 1996.

  • Mackenzie, K. K. 1906. Notes on Carex I. Bulletin of the Torrey Botanical Club 33: 439-443.

  • Mitchell, R. S. 1998. Amendments to the State Checklist I. New York Flora Association Newsletter 9(3): 1-2.

  • Mitchell, Richard S. and Gordon C. Tucker. 1997. Revised Checklist of New York State Plants. Contributions to a Flora of New York State. Checklist IV. Bulletin No. 490. New York State Museum. Albany, NY. 400 pp.

  • NatureServe: An online encyclopedia of life [web application]. 2000. Version 1.1. Arlington, Virginia, USA: Association for Biodiversity Information. Available: http://natureserve.org/.

  • New York Natural Heritage Program. 2010. Biotics database. New York Natural Heritage Program. New York State Department of Environmental Conservation. Albany, NY.

  • Oldham, M. J., and W. J. Crins. 1988. New and significant records of Ontario sedges (Cyperaceae). Canadian Field-Naturalist 102(3):500-507.

  • Oldham, M.J. and W.J. Crins. 1988. New and significant records of Ontario sedges (Cyperaceae). Canadian Field-Naturalist 102(3): 500-507.

  • Oldham, M.J., and S.R. Brinker. 2009. Rare Vascular Plants of Ontario, Fourth Edition. Natural Heritage Information Centre, Ontario Ministry of Natural Resources. Peterborough, Ontario. 188 pp.

  • Oldham, M.J., and W.J. Crins. 2000. NHIC assists Ontario Parks with study of Double-crested Cormorant impacts on rare plants. Ontario Natural Heritage Information Centre (NHIC) Newsletter 6(1):12-14.

  • Reschke, Carol. 1990. Ecological communities of New York State. New York Natural Heritage Program, New York State Department of Environmental Conservation. Latham, NY. 96 pp. plus xi.

  • Reznicek, A.A. and M.J. Oldham. 1987. Carex aggregata Mackenzie. In. Atlas of the Rare Vascular Plants of Ontario (Argus, G.W. and D.J. White, eds.). National Museums of Canada, Ottawa.

  • Reznicek, A.A. and P.M. Catling. 1987. Carex emmonsii Dewey In. Atlas of the Rare Vascular Plants of Ontario (Argus, G.W. and D.J. White, eds.). National Museums of Canada, Ottawa.

  • Rhoads, Ann F. and Timothy A. Block. 2000. The Plants of Pennsylvania, an Illustrated Manual. University of Pennsylvania Press, Philadelphia, PA.

  • Rush, S. A., S. Verkoeyen, T. Dobbie, S. Dobbyn, C. E. Hebert, J. Gagnon, and A. T. Fisk. 2011. Influence of increasing populations of Double-crested Cormorants on soil nutrient characteristics of nesting islands in western Lake Erie. Journal of Great Lakes Research 37: 305?309.

  • Southeast Regional Network of Expertise and Collections (SERNEC) Data Portal. http//:sernecportal.org/portal/index.php.

  • Swink, F., and G. Wilhelm. 1994. Plants of the Chicago Region. Morton Arboretum. Lisle, Illinois.

  • Voss, E. G., and A. A. Reznicek. 2012. Field Manual of Michigan Flora. University of Michigan Press, Ann Arbor. 990 pp.

  • Voss, E.G. 1972. Michigan Flora, Part I. Gymnosperms and Monocots. Cranbrook Institute of Science Bulletin 55 and the University of Michigan Herbarium. Ann Arbor. 488 pp.

  • Weldy, T. and D. Werier. 2010. New York flora atlas. [S.M. Landry, K.N. Campbell, and L.D. Mabe (original application development), Florida Center for Community Design and Research http://www.fccdr.usf.edu/. University of South Florida http://www.usf.edu/]. New York Flora Association http://wwws.nyflora.org/, Albany, New York

  • Weseloh, D.V. 2001. The colonial waterbirds of Middle Island, western Lake Erie. Point Pelee Natural History News 1(2): 25-30.

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