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Carex lacustris Willd.
Life   Plantae   Monocotyledoneae   Cyperaceae   Carex

Carex lacustris
© Les Mehrhoff, 2008-2010 · 6
Carex lacustris

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Carex lacustris
© Les Mehrhoff, 2008-2010 · 3
Carex lacustris
Carex lacustris
© Les Mehrhoff, 2008-2010 · 3
Carex lacustris
Carex lacustris
© Les Mehrhoff, 2008-2010 · 1
Carex lacustris

Associates · map
FamilyScientific name @ source (records)
Glomerellaceae  Colletotrichum madisonensis @ BPI (2)
Phaeosphaeriaceae  Stagonospora albescens @ BPI (1)
Pucciniaceae  Puccinia caricina @ BPI (2)

Puccinia caricis @ BPI (1)

Puccinia grossulariae @ BPI (2)
_  Cylindrosporella caricina @ BPI (1)

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https://plants.usda.gov/java/profile?symbol=CALA16 ---> http://plants.usda.gov/core/profile?symbol=CALA16
http://plants.usda.gov/core/profile?symbol=CALA16 ---> https://plants.usda.gov/core/profile?symbol=CALA16
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Carex lacustris Willd.
hairy sedge

Image of Carex lacustris

General Information
Symbol: CALA16
Group: Monocot
Family: Cyperaceae
Duration: Perennial
Growth Habit : Graminoid
Native Status : CAN   N
L48   N
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Carex thumbnails at the Plants Gallery

Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species . Northeast National Technical Center, Chester. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 425. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team . Usage Requirements .



Symbol Scientific Name
CARIL Carex riparia M.A. Curtis var. lacustris (Willd.) Kük.


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Commelinidae
Order Cyperales
Family Cyperaceae – Sedge family
Genus Carex L. – sedge
Species Carex lacustris Willd. – hairy sedge

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Maryland lake-bank sedge Threatened
Tennessee lake-bank sedge Threatened

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont OBL
Great Plains OBL
Midwest OBL
Northcentral & Northeast OBL
Western Mountains, Valleys, and Coast OBL

Related Links

More Accounts and Images
Flora of North America (CALA16)
Integrated Taxonomic Information System (CALA16)
Integrated Taxonomic Information System (CARIL)
Lady Bird Johnson Wildflower Center Native Plant Information Network (CALA16)
University of Tennessee Herbarium (Distribution) (CALA16)
University of Wisconsin - Stevens Point Freckmann Herbarium (CALA16)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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Link to Flora of North America home
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FNA Vol. 23 Page 491, 493 , 494, 497, 499, 507 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 23 | Cyperaceae | Carex

354. Carex lacustris Willdenow, Sp. Pl. 4(1): 306. 1805.

Carex lacustre

Plants colonial; rhizomes long-creeping. Culms lateral, coarse, trigonous, 50—135 cm, smooth or somewhat scabrous-angled distally. Leaves: basal sheaths reddish purple, strongly fibrillose, bladeless; longest ligules 13—40(—56) mm, much longer than wide; blades glaucous to pale green, M-shaped, (5.5—)8.5—21 mm wide, glabrous. Inflorescences 17—60 cm; proximal 2—4 spikes pistillate, ascending to arching; distal spikes erect; terminal 3—5(—7) spikes staminate. Pistillate scales lanceolate to ovate, apex obtuse to acuminate, glabrous, awn 0.3—3.5 mm, ± scabrous. Perigynia ascending, usually strongly 14—28-veined, narrowly ovoid to narrowly ellipsoid, (4.5—)5.2—7.8 × 1.6—2.5 mm, glabrous; beak obscure, 0.5—1.6 mm, bidentulate, teeth straight, 0.2—0.7(—0.9) mm. 2n = 74.

Fruiting May—Jul. Open swamps, wet, open thickets, marsh edges, sedge meadows, fens, shores of streams, ponds and lakes; 0—1000 m; Alta., Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., Que., Sask.; Conn., Del., D.C., Idaho, Ill., Ind., Iowa, Maine, Md., Mass., Mich., Minn., Mo., Mont., Nebr., N.H., N.J., N.Y., N.Dak., Ohio, Pa., R.I., S.Dak., Vt., Va., W.Va., Wis.

Carex lacustris is abundant and often a dominant of calcareous, north-temperate wetlands. Sometimes extensive stands are seen without fertile culms.

Rare hybrids between Carex lacustris and C. hyalinolepis, C. pellita, C. trichocarpa (P. M. Catling et al. 1989), and C. utriculata are known; the hybrids are sterile and intermediate in morphology and can form extensive clones.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Carex+lacustris&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Carex+lacustris&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 4
Query: SELECT * FROM img WHERE ready=1 and taxon like "Carex lacustris%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Carex lacustris
Carex lacustris
ID: 0000 0000 0510 1360 [detail]
© 2010 Louis-M. Landry

Carex lacustris
Carex lacustris
ID: 0000 0000 0510 1361 [detail]
© 2010 Louis-M. Landry

Carex lacustris
Carex lacustris
ID: 0000 0000 0510 1362 [detail]
© 2010 Louis-M. Landry

Carex lacustris
Carex lacustris
ID: 0000 0000 0510 1363 [detail]
© 2010 Louis-M. Landry

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