Carex leptalea - Wahlenb.
Bristly-stalked Sedge
Other English Common Names: Little Bog Sedge
Other Common Names: bristly-stalked sedge
Taxonomic Status: Accepted
Related ITIS Name(s): Carex leptalea Wahlenb. (TSN 39669)
French Common Names: carex ŗ tiges grÍles
Unique Identifier: ELEMENT_GLOBAL.2.156580
Element Code: PMCYP037E0
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 leptalea
Taxonomic Comments: FNA (vol. 23, 2002) lumps subspecific taxa.
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 16May2016
Global Status Last Changed: 29Feb1984
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Reasons: Widespread; common in the northern parts of its range.
Nation: United States
National Status: N5
Nation: Canada
National Status: N5 (10Aug2015)

U.S. & Canada State/Province Status
United States Alabama (SNR), Alaska (S4), Arkansas (SNR), California (S1), Colorado (S1), Connecticut (SNR), Delaware (S4), District of Columbia (SNR), Florida (SNR), Georgia (S4), Idaho (S2), Illinois (S2S3), Indiana (S3), Iowa (S1), Kentucky (S3S4), Louisiana (SNR), Maine (SNR), Maryland (S5), Massachusetts (SNR), Michigan (SNR), Minnesota (SNR), Mississippi (S5), Missouri (SNR), Montana (S4), New Hampshire (SNR), New Jersey (SNR), New Mexico (SNR), New York (S5), North Carolina (S3), North Dakota (S2S3), Ohio (SNR), Oklahoma (S1), Oregon (S3), Pennsylvania (SNR), Rhode Island (SNR), South Carolina (SNR), South Dakota (S3), Tennessee (SNR), Texas (SNR), Utah (S1), Vermont (SNR), Virginia (S5), Washington (SNR), West Virginia (S4), Wisconsin (SNR), Wyoming (S3)
Canada Alberta (S5), British Columbia (SNR), Labrador (S3S5), Manitoba (S5), New Brunswick (S5), Newfoundland Island (S3S5), Northwest Territories (SNR), Nova Scotia (S5), Nunavut (S3), Ontario (S5), Prince Edward Island (S5), Quebec (S4S5), Saskatchewan (S5), Yukon Territory (S4)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Labrador to Alaska, south to central Florida, Texas, New Mexico, Colorado, northeastern Utah, Idaho, Oregon, and California. Not reported from Kansas and Nebraska. Carex leptalea ssp. harperi is found in the southeastern portion of the range, and C. leptalea ssp. pacifica occurs in British Columbia and southernmost Alaska. C. leptalea has the widest geographic range of any North America sedge (FNA 2002).

Number of Occurrences: 81 to >300

Population Size Comments: Common in northern parts of its range. Uncommon in much of the contiguous US: as of 95-03-16, ranked S1 in 6 states (CO, IA, ID, OK, UT, WY), S2 in 3 (CA, DE, SD), S3 in 5 (AR, IN, MD, NC, ND), S3S4 in KY.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Labrador to Alaska, south to central Florida, Texas, New Mexico, Colorado, northeastern Utah, Idaho, Oregon, and California. Not reported from Kansas and Nebraska. Carex leptalea ssp. harperi is found in the southeastern portion of the range, and C. leptalea ssp. pacifica occurs in British Columbia and southernmost Alaska. C. leptalea has the widest geographic range of any North America sedge (FNA 2002).

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

U.S. & Canada State/Province Distribution
United States AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY
Canada AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
CA Del Norte (06015), Humboldt (06023), Marin (06041)*, Trinity (06105)*
CO Clear Creek (08019), El Paso (08041)*, Grand (08049), Jackson (08057), Park (08093)*, Pitkin (08097)
DE New Castle (10003)
IA Benton (19011), Black Hawk (19013), Buchanan (19019), Butler (19023), Jones (19105), Linn (19113), Scott (19163)
ID Bonner (16017), Boundary (16021), Clearwater (16035), Idaho (16049)
ND Cavalier (38019), McHenry (38049), Pembina (38067), Ransom (38073), Richland (38077)
OK Atoka (40005), Choctaw (40023), McCurtain (40089)
SD Custer (46033), Lawrence (46081), Meade (46093), Pennington (46103)
UT Daggett (49009), Duchesne (49013), Uintah (49047)*
WY Albany (56001), Crook (56011), Park (56029), Teton (56039)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
02 Brandywine-Christina (02040205)+
07 Lower Wapsipinicon (07080103)+, West Fork Cedar (07080204)+, Middle Cedar (07080205)+
09 Lower Souris (09010003)+, Lower Sheyenne (09020204)+, Lower Red (09020311)+*, Lower Pembina River (09020316)+
10 Madison (10020007)+, Yellowstone Headwaters (10070001)+, Clarks Fork Yellowstone (10070006)+, Middle Cheyenne-Spring (10120109)+, Rapid (10120110)+, Middle Cheyenne-Elk (10120111)+, Lower Belle Fourche (10120202)+, Redwater (10120203)+, Upper North Platte (10180002)+, Upper Laramie (10180010)+, South Platte Headwaters (10190001)+*, Clear (10190004)+
11 Fountain (11020003)+*, Muddy Boggy (11140103)+, Clear Boggy (11140104)+, Pecan-Waterhole (11140106)+, Upper Little (11140107)+
14 Colorado headwaters (14010001)+, Roaring Fork (14010004)+, Upper Green-Flaming Gorge Reservoir (14040106)+, Duchesne (14060003)+
17 Lower Kootenai (17010104)+, Lower Clark Fork (17010213)+*, Pend Oreille Lake (17010214)+*, Priest (17010215)+, Snake headwaters (17040101)+, Teton (17040204)+, Clearwater (17060306)+
18 Smith (18010101)+, Mad-Redwood (18010102)+, Trinity (18010211)+*, Tomales-Drake Bays (18050005)+*
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
Help
Basic Description: A slender, pale green sedge with the flowering stems taller than the leaves, bearing a single spike.
Technical Description: Stems densely clustered on slender, freely branched rhizomes, very slender, 1.5-6 dm; leaves shorter than the stems, slender but more or less flat, 0.7-1.2 mm wide; spike 1, 0.5-1.5 cm, the terminal staminate part often short; pistillate scales obtuse to acute or short-awned, mostly shorter than the perigynia, or the lowest prolonged into a slender tip surpassing the perigynia; perigynia 1-10, 2.5-4.5 mm, appressed-ascending, often rather remote, membranaceous, elliptic or lance-elliptic, with a narrow, often substipitate, spongy base 0.5-1 mm, beakless, with 2 marginal nerves and many finer nerves on each face; achene trigonous, 1.3-1.8 mm, not filling the perigynium; rachilla wanting; 2n = 52. ssp. harperi has the perigynia up to 5 mm long. (Gleason & Cronquist 1991)
††††††††††††††† From CNHP Wetland Guide 2012: Habit: stems densely clustered from slender, freely branching rhizomes.† Culms: triangular, slender, sometimes arching, 1.5-7 dm tall, exceeding the leaves, aphyllopodic.
Leaves:† 2. Blades: flat, thin, soft and lax, deep green, 0.5-1.3 mm wide.†† Sheaths: membranous, brownish-tinged at maturity, concave at mouth. Bracts: None. Spikes: solitary, androgynous, narrow, few flowered, perigynia few, subalternate on rachis, appressed-ascending. Spikes are hardly wider than the top of culm. Pistillate Scales: ovate-orbicular, small, shorter than perigynia, deciduous. Perigynia: oval-elliptic, circular in cross section, spongy at base, often sub-stipate, pale green or yellowish green, 2.5-5 mm long, 1-1.5 mm wide.† Nerves: finely many-striate on both surfaces, marginal nerves present. Beaks: absent. Stigmas: 3

Diagnostic Characteristics: The only species in Section Polytrichoideae: Spike single, terminal, narrow, few-flowered, androgynous or all pistillate; stigmas 3, achene trigonous or round in cross-section, not filling the perigynium; rachilla absent; perigynium 5 mm or less, green, ascending, elliptic, beakless; lowest pistillate scales small, not foliaceous, mostly shorter than the perigynia; leaves numerous, slender, pale green. Fairly distinctive in overall appearance: pale green plant with very slender leaves, filiform stems, and small, single, terminal, androgynous spikes.
Duration: PERENNIAL
Reproduction Comments: Staminate flowers above pistillate on the same spike. Cyperaceae are wind-pollinated with the exception of Dichromena. The inflated perigynium allows Carex seeds to float for long periods of time (2 days to over 12 months, depending on the species), and various species are also dispersed by ants, birds, and mammals (Ridley 1930).
Ecology Comments: Tolerances inferred from habitat.
Palustrine Habitat(s): Bog/fen, FORESTED WETLAND, HERBACEOUS WETLAND, Riparian
Terrestrial Habitat(s): Forest - Conifer, Forest - Hardwood, Forest - Mixed, Forest/Woodland, Grassland/herbaceous
Habitat Comments: Typically in wet boreal forested areas. Spaghnum bogs, tamarack bogs, swamps (coniferous, mixed hardwood-conifer, and unspecified), moist to wet woods, wet meadows; often in calcareous places. Also listed from wet calcareous fens (Northwest Territories), shores (Alaska), stream banks (Indiana), damp areas at the base of cliffs or ledges (southeast, Missouri, Indiana). (Cronquist et al. 1977, Deam 1940, Fernald 1950, Gleason & Cronquist 1991, Godfrey & Wooten 1979, Hulten 1968, Porsild & Cody 1980, Radford et al. 1968, Steyermark 1963, Strausbaugh & Core 1978, Voss 1972)
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
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Authors/Contributors
Help
NatureServe Conservation Status Factors Edition Date: 16Mar1995
NatureServe Conservation Status Factors Author: M.E. Stover, TNC-HO
Element Ecology & Life History Edition Date: 16Mar1995
Element Ecology & Life History Author(s): M.E. STOVER, TNC-HO

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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