Carex comosa - Boott
Bristly Sedge
Other English Common Names: Comosa Sedge, Longhair Sedge
Other Common Names: longhair sedge
Taxonomic Status: Accepted
Related ITIS Name(s): Carex comosa Boott (TSN 39384)
Unique Identifier: ELEMENT_GLOBAL.2.141025
Element Code: PMCYP032Y0
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 comosa
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 13May2016
Global Status Last Changed: 24Feb1984
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Reasons: Carex comosa is widely distributed, occurring from Quebec south to the southeastern United States, including Texas. It is disjunct and rare in the Pacific states; in Idaho, it is known from only three occurrences. Marsh drainage, herbicides, pesticides, and altered hydrologic regimes pose threats to this taxon.
Nation: United States
National Status: NNR
Nation: Canada
National Status: N5 (30Jan2010)

U.S. & Canada State/Province Status
United States Alabama (SNR), Arkansas (S1S2), California (S2), Connecticut (SNR), Delaware (S5), District of Columbia (SNR), Florida (SNR), Georgia (SNR), Idaho (S1), Illinois (S3?), Indiana (SNR), Iowa (S3), Kentucky (SH), Louisiana (SNR), Maine (SNR), Maryland (SNR), Massachusetts (SNR), Michigan (SNR), Minnesota (SNR), Mississippi (S1), Missouri (S2), Montana (S1), Nebraska (SNR), New Hampshire (SNR), New Jersey (S5), New York (S5), North Carolina (S3), Ohio (SNR), Oregon (S1), Pennsylvania (SNR), Rhode Island (SNR), South Carolina (SNR), South Dakota (SNR), Tennessee (S2), Texas (S1), Vermont (SNR), Virginia (S5), Washington (S2), West Virginia (S2), Wisconsin (SNR)
Canada British Columbia (S2), New Brunswick (S1), Nova Scotia (S2), Ontario (S5), Prince Edward Island (SNR), Quebec (S3S4)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Quebec to Minnesota and south; disjunct in the Pacific states; in Idaho, occurs in Bonner and Boundary Counties (Idaho Native Plant Society, 1992). In California, occurs in Contra Costa, Lake, Shasta, San Joaquin, and Sonoma Counties, extirpated in San Bernardino, Santa Cruz, and San Francisco Counties (Skinner, 1997). In Washington, known from Chelan, Jefferson, King, Pend Oreille, Skagit, Snohomish, Spokane, Thurston, and Whatcom Counties; historical in Kittitas and Walla Walla Counties (Washington Natural Heritage Program, 1997). South to Florida and Louisiana. Peripheral.

Number of Occurrences:  
Number of Occurrences Comments: In Idaho, known from three occurrences (Idaho Native Plant Society, 1992).

Population Size Comments: Fairly widely distributed, but apparently rarely collected (Skinner, 1997). Common in North Carolina, South Carolina, and Virginia (Weakley, 1996).

Overall Threat Impact Comments: Marsh drainage (Skinner, 1997). Housing development, herbicides, pesticides, altered hydrologic regimes (Washington Natural Heritage Program, 1981).

Other NatureServe Conservation Status Information

Distribution
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Global Range: Quebec to Minnesota and south; disjunct in the Pacific states; in Idaho, occurs in Bonner and Boundary Counties (Idaho Native Plant Society, 1992). In California, occurs in Contra Costa, Lake, Shasta, San Joaquin, and Sonoma Counties, extirpated in San Bernardino, Santa Cruz, and San Francisco Counties (Skinner, 1997). In Washington, known from Chelan, Jefferson, King, Pend Oreille, Skagit, Snohomish, Spokane, Thurston, and Whatcom Counties; historical in Kittitas and Walla Walla Counties (Washington Natural Heritage Program, 1997). South to Florida and Louisiana. Peripheral.

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AL, AR, CA, CT, DC, DE, FL, GA, IA, ID, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NY, OH, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV
Canada BC, NB, NS, ON, PE, QC

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
AR Hempstead (05057)
CA Contra Costa (06013), Lake (06033)*, Mendocino (06045), Sacramento (06067), San Bernardino (06071)*, San Francisco (06075)*, San Joaquin (06077)*, San Mateo (06081)*, Santa Cruz (06087), Shasta (06089), Sonoma (06097)
ID Bonner (16017), Boundary (16021), Kootenai (16055)*
MO Butler (29023), Cape Girardeau (29031)*, Carter (29035), Clark (29045), Dunklin (29069)*, Madison (29123), Mississippi (29133), Oregon (29149), Platte (29165)*, Pulaski (29169), Reynolds (29179), Ripley (29181), Scott (29201), Shannon (29203), St. Louis (29189)*, St. Louis (city) (29510)*, Stoddard (29207)*, Wayne (29223)*
MS Coahoma (28027)
MT Flathead (30029)
OR Columbia (41009)*, Klamath (41035), Multnomah (41051)*
TN Lake (47095), Lewis (47101)*, Loudon (47105), Meigs (47121), Monroe (47123), Montgomery (47125)*, Obion (47131), Stewart (47161)
WA Chelan (53007), Columbia (53013)*, Jefferson (53031), King (53033), Kittitas (53037)*, Lincoln (53043), Pend Oreille (53051), Pierce (53053), Skagit (53057), Snohomish (53061), Spokane (53063), Stevens (53065), Thurston (53067), Walla Walla (53071)*, Whatcom (53073)
WV Fayette (54019)*, Hardy (54031), Jefferson (54037), Tucker (54093)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
02 South Branch Potomac (02070001)+, Conococheague-Opequon (02070004)+, Shenandoah (02070007)+
05 Cheat (05020004)+, Lower New (05050004)+*, Lower Cumberland (05130205)+
06 Watts Bar Lake (06010201)+, Hiwassee (06020002)+, Lower Duck (06040003)+*
07 Bear-Wyaconda (07110001)+, Cahokia-Joachim (07140101)+*, Upper Mississippi-Cape Girardeau (07140105)+, Whitewater (07140107)+*
08 Obion (08010202)+, New Madrid-St. Johns (08020201)+, Upper St. Francis (08020202)+, Lower St. Francis (08020203)+*, Little River Ditches (08020204)+*, Cache (08020302)+*, Tallahatchie (08030202)+
10 Independence-Sugar (10240011)+*, Big Piney (10290202)+
11 Upper Black (11010007)+, Current (11010008)+, Eleven Point (11010011)+, Lower Little (11140109)+
17 Lower Kootenai (17010104)+, Flathead Lake (17010208)+, Pend Oreille Lake (17010214)+, Pend Oreille (17010216)+, Upper Spokane (17010305)+*, Little Spokane (17010308)+, Colville (17020003)+, Wenatchee (17020011)+, Upper Yakima (17030001)+*, Palouse (17060108)+, Walla Walla (17070102)+*, Lower Columbia-Clatskanie (17080003)+*, Lower Willamette (17090012)+*, Upper Chehalis (17100103)+, Strait of Georgia (17110002)+, Nooksack (17110004)+, Lower Skagit (17110007)+, Skykomish (17110009)+, Snoqualmie (17110010)+, Lake Washington (17110012)+*, Duwamish (17110013)+, Puyallup (17110014)+*, Nisqually (17110015)+, Deschutes (17110016)+, Hood Canal (17110018)+, Puget Sound (17110019)+
18 Gualala-Salmon (18010109)+, Russian (18010110)+, Upper Klamath Lake (18010203)+, Lost (18010204)+, Upper Klamath (18010206)+, Lower Pit (18020003)+, Upper Cache (18020116)+*, Lower Sacramento (18020163)+, San Joaquin Delta (18040003)+, Upper Mokelumne (18040012)+, San Pablo Bay (18050002)+*, San Francisco Bay (18050004)+*, San Francisco Coastal South (18050006)+*, San Lorenzo-Soquel (18060001)+, Santa Ana (18070203)+*
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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General Description: Bristly Sedge is a coarse, perennial, grasslike plant with clustered stems, 5-10 dm high, which arise from a short rhizome. The long, glabrous leaves are flat and 4-11 mm wide. Flowers are clustered in cylindical spikes, 2-7 cm long, which arise from the axils of the smaller upper leaves (bracts). The lowest bract leaf is much longer than the inflorescence. Male flowers are borne in a narrow spike at the top; 3-5 nodding female spikes, 15 mm thick, occur below. The glabrous, spreading, pale green, lance-shaped perigynia, 5-8 mm long, have a long beak ending in two long, slender, divergent lobes. The papery scales subtending the perigynia are 1-2 mm long with a pointed tip which can be up to 6 mm long. Each perigynia has 3 styles and a 3-sided achene.
Diagnostic Characteristics: Other closely related coarse sedges with nodding spikes are C. HYSTRICINA and sometimes C. UTRICULATA, but neither of these species have perigynia with sharp-pointed, spreading lobes. A hand lens will be needed to observe these characters.
Habitat Comments: Marshes, lakeshores, and wet meadows (Idaho Native Plant Society, 1992).
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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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: 18May1998
NatureServe Conservation Status Factors Author: GRIES, D
Element Ecology & Life History Edition Date: 08Oct1994
Element Ecology & Life History Author(s): JM

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
  • Idaho Native Plant Society. 1992. Federal candidate (C1 and C2) and listed rare plants of Idaho. unpaginated.

  • 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.

  • Skinner, M.W., and B.M. Pavlik, eds. 1997 (1994). Inventory of rare and endangered vascular plants of California. 1997 Electronic Inventory Update of 1994 5th edition, California Native Plant Society, Special Publication No. 1, Sacramento.

  • Washington Natural Heritage Program. 1981. An illustrated guide to the endangered, threatened and sensitive vascular plants of Washington. Washington Natural Heritage Program, Olympia. 328 pp.

  • Washington Natural Heritage Program. 1997. Endangered, Threatened and Sensitive Vascular Plants of Washington - with Working Lists of Rare Non-Vascular Species. Department of Natural Resources. Olympia. 62 p.

  • Weakley, A.S. 1997. Flora of the Carolinas and Virginia: working draft of 21 July 1997. The Nature Conservancy, Southeast Regional Office, Southern Conservation Science Dept., Chapel Hill, North Carolina.

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