Lipocarpha micrantha - (Vahl) G. Tucker
Dwarf Bulrush
Other English Common Names: Small-flower Halfchaff Sedge, Small-flower Hemicarpha
Other Common Names: smallflower halfchaff sedge
Synonym(s): Hemicarpha micrantha (Vahl) Pax ;Scirpus micranthus Vahl
Taxonomic Status: Accepted
Related ITIS Name(s): Lipocarpha micrantha (Vahl) G. Tucker (TSN 503499)
Unique Identifier: ELEMENT_GLOBAL.2.144682
Element Code: PMCYP0H040
Informal Taxonomy: Plants, Vascular - Flowering Plants - Sedge Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Monocotyledoneae Cyperales Cyperaceae Lipocarpha
Check this box to expand all report sections:
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: Lipocarpha micrantha
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 10Sep2002
Global Status Last Changed: 10Sep2002
Rounded Global Status: G5 - Secure
Reasons: Scattered distribution in sandy sites over wide range, from Brazil to southern Canada.
Nation: United States
National Status: NNR
Nation: Canada
National Status: N2 (13Jul2009)

U.S. & Canada State/Province Status
United States Alabama (SNR), Arizona (SNR), Arkansas (SNR), California (SNR), Connecticut (S1S2), District of Columbia (S1), Florida (SNR), Georgia (S3?), Idaho (SNR), Illinois (S3S4), Indiana (SNR), Iowa (S4), Kansas (S2), Kentucky (S4?), Louisiana (S1), Maine (S1), Maryland (S1), Massachusetts (S2), Michigan (S3), Minnesota (SNR), Mississippi (S4), Missouri (SNR), Nebraska (SNR), New Hampshire (SH), New Jersey (S1), New Mexico (SNR), New York (S1), North Carolina (SH), North Dakota (S1?), Ohio (S2), Oklahoma (SNR), Oregon (SH), Pennsylvania (S1), Rhode Island (S1), South Carolina (S2), Tennessee (SNR), Texas (SNR), Virginia (S2), Washington (SNR), Wisconsin (SNR)
Canada British Columbia (S1), Ontario (S2), Quebec (SX)

Other Statuses

Canadian Species at Risk Act (SARA) Schedule 1/Annexe 1 Status: E (12Jan2005)
Committee on the Status of Endangered Wildlife in Canada (COSEWIC): Endangered (01Nov2002)

NatureServe Global Conservation Status Factors

Range Extent Comments: From south-central Brazil north to Canada, including Mexico and much of the United States.

Number of Occurrences: 81 to >300
Number of Occurrences Comments: Scattered occurrences over a wide range from Canada to Brazil.

Population Size Comments: Locally abundant at some sites.

Other NatureServe Conservation Status Information

Distribution
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Global Range: From south-central Brazil north to Canada, including Mexico and much of the United States.

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

U.S. & Canada State/Province Distribution
United States AL, AR, AZ, CA, CT, DC, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, TN, TX, VA, WA, WI
Canada BC, ON, QCextirpated

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
CT Hartford (09003), Litchfield (09005), Middlesex (09007)*, New Haven (09009)*, Tolland (09013)
KS Leavenworth (20103), Sedgwick (20173)
LA Caddo (22017)*, Iberville (22047), Jefferson (22051)*, Orleans (22071)*, Plaquemines (22075), St. Charles (22089), St. Mary (22101)
MA Barnstable (25001), Dukes (25007)*, Essex (25009)*, Hampden (25013), Hampshire (25015)*, Middlesex (25017), Norfolk (25021)*, Plymouth (25023), Worcester (25027)
MD Howard (24027), Montgomery (24031)
ME Androscoggin (23001), Kennebec (23011), Oxford (23017)*, Sagadahoc (23023), York (23031)
MI Allegan (26005), Barry (26015), Berrien (26021), Cass (26027)*, Clinton (26037)*, Ingham (26065)*, Kalamazoo (26077), Kent (26081), Lake (26085), Manistee (26101), Mason (26105), Monroe (26115), Muskegon (26121), Newaygo (26123), St. Clair (26147), St. Joseph (26149)*, Van Buren (26159), Washtenaw (26161)
NC Brunswick (37019)*, Columbus (37047)*, Dare (37055)*
NH Belknap (33001)*, Carroll (33003)*, Strafford (33017)*
NJ Bergen (34003), Camden (34007)*, Gloucester (34015)*, Morris (34027)*, Passaic (34031)
NY Essex (36031), Oneida (36065)*, Orange (36071), Oswego (36075)*, Saratoga (36091)*, Suffolk (36103), Warren (36113), Washington (36115)*
OH Erie (39043), Hamilton (39061), Henry (39069), Lake (39085), Lucas (39095), Montgomery (39113)
PA Centre (42027)*, Erie (42049), Northumberland (42097)*, Union (42119)*, York (42133)
RI Kent (44003), Providence (44007)*, Washington (44009)
SC Beaufort (45013)*, Horry (45051), Williamsburg (45089), York (45091)
VA Arlington (51013), Charlotte (51037), Fairfax (51059), Goochland (51075), Halifax (51083), Isle of Wight (51093), Mecklenburg (51117), Richmond (City) (51760), Southampton (51175)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
01 Lower Kennebec (01030003)+, Lower Androscoggin (01040002)+, Saco (01060002)+, Piscataqua-Salmon Falls (01060003)+*, Merrimack (01070002)+*, Nashua (01070004)+, Concord (01070005)+*, Chicopee (01080204)+, Lower Connecticut (01080205)+, Westfield (01080206)+, Farmington (01080207)+, Charles (01090001)+, Cape Cod (01090002)+, Narragansett (01090004)+, Pawcatuck-Wood (01090005)+, Shetucket (01100002)+, Quinnipiac (01100004)+*
02 Upper Hudson (02020001)+, Hudson-Hoosic (02020003)+*, Hackensack-Passaic (02030103)+, Southern Long Island (02030202)+, Lower Delaware (02040202)+*, Schuylkill (02040203)+*, Lower West Branch Susquehanna (02050206)+*, Lower Susquehanna-Penns (02050301)+*, Lower Susquehanna (02050306)+, Patuxent (02060006)+, Middle Potomac-Catoctin (02070008)+, Middle Potomac-Anacostia-Occoquan (02070010)+, Middle James-Willis (02080205)+
03 Middle Roanoke (03010102)+, Lower Dan (03010104)+, Nottoway (03010201)+*, Blackwater (03010202)+, Pamlico Sound (03020105)+*, Black (03040205)+, Waccamaw (03040206)+, Lower Catawba (03050103)+, Broad-St. Helena (03050208)+*
04 Little Calumet-Galien (04040001)+, St. Joseph (04050001)+, Black-Macatawa (04050002)+, Kalamazoo (04050003)+, Upper Grand (04050004)+*, Lower Grand (04050006)+, Thornapple (04050007)+, Pere Marquette-White (04060101)+, Muskegon (04060102)+, Manistee (04060103)+, Lake St. Clair (04090002)+, Huron (04090005)+, Ottawa-Stony (04100001)+, Lower Maumee (04100009)+, Sandusky (04100011)+, Ashtabula-Chagrin (04110003)+, Chautauqua-Conneaut (04120101)+, Lake Erie (04120200)+, Oneida (04140202)+*, Lake Champlain (04150408)+
05 Upper Great Miami (05080001)+, Lower Great Miami (05080002)+
08 Lower Mississippi-Baton Rouge (08070100)+, Atchafalaya (08080101)+, Lower Mississippi-New Orleans (08090100)+, Eastern Louisiana Coastal (08090203)+*, East Central Louisiana Coastal (08090301)+*
10 Independence-Sugar (10240011)+
11 Middle Arkansas-Slate (11030013)+, Cross Bayou (11140304)+*
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
Help
Basic Description: A tufted dwarf sedge with slender culms, bract-like leaves, and 1-3 short ovoid spikes per culm.
Technical Description: Culms: slender, 2-10 (-20) cm tall, usually recurved toward the northern limits of the species. Leaves: similar to the filiform involucre bracts, up to 10 cm long and 0.5 mm wide, slightly resembling the stems. Spike: mostly 1-3 per stem, ovoid, 2-6 mm long. Involucre: with a single leaf. Scales of spikelets: numerous, spirally imbricate, 1-2 mm long, firm, oblong or narrowly obovate, mucronate, slightly reticulated with many close rows of crowded low papillae, outer scales may be awned, inner scales hyaline, usually minute, frequently absent. Flowers: perfect, perianth absent, bristles none. Style: 2 cleft, not enlarged. Stamen: one. Achene: 0.5-0.7 mm long, cylindric to compressed, becoming irridescent brown at maturity.
Diagnostic Characteristics: Inner scale much shorter than the achene, bristle like, bifid, or lacking; achene cylindric, irridescent brown when mature; scales of spikelet spirally imbricate; base of style not enlarged.
Duration: ANNUAL
Habitat Comments: Sandy strands, shores, pond and lake margins, bogs, along streams, beaches, and vernal wetlands.
Economic Attributes Not yet assessed
Help
Management Summary Not yet assessed
Help
Population/Occurrence Delineation Not yet assessed
Help
Population/Occurrence Viability
Help
U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
Help
Authors/Contributors
Help
NatureServe Conservation Status Factors Edition Date: 22Dec1994
NatureServe Conservation Status Factors Author: Morse, Larry E. (1994), rankspecs by A. Weakley (1994).
Element Ecology & Life History Edition Date: 31Jan1992
Element Ecology & Life History Author(s): ISAAC, J.

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
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