Carex lacustris
River sedge, Common lake sedge Taxonomy
Synonyms: Subspecific taxa: Classification:
Other taxonomic & nomenclature sources: USDA Plants;  ITIS;  The Plant List;  IPNI Species Distribution
If map does not appear refresh browser Click map to view & download detailed occurrence records
County Map Legend
Absent: Not known from county Medium confidence: Medium or unknown confidence; often old records or unverifiable observations Medium-high confidence: Often observations by expert botanists High confidence: Often vouchered herbarium records Planted / introduced: Native species introduced outside historic range, or only in planted locations within county (e.g., restorations) Historic / extirpated: Only historic records for the species; likely extirpated (Note that this category is not yet functional) North American distribution maps for this species: FLNA;  USDA Plants;  BONAP;  BISON
Collections, Observations & Flowering by Month [?]
J
0 F
0 M
0 A
0 M
0 J
0 J
0 A
0 S
0 O
0 N
0 D
0
Collections & Observations by Decade [?]
Species Status
Status/Listing: No Information Notes: Origin: Native
Species Description
General: Monocot, perennial Roots: adventitious, fibrous, rhizomes Shoots: alternate leaf arrangment; simple leaf type; entire leaf margin; Parallel leaf venation; awl-shaped leaf shape Inflorescence: spike Flowers: unisexual, monoecious; 3 merous; incomplete, not petals, not sepals; hypogynous ovary position Fruit: achene Physiology: autotrophic Reproduction: sexual, vegetative
Ecology & Natural History
Habitat: Calcareous marshes, bog borders, calcareous shrub communities, swampy woods. Wet river bottom prairies, prairie swales. ILPIN Notes: A robust species with purple culm bases and the lower leaf sheaths ventrally conspicuous, exceeding the leaves. Perigynia beaked, the beak toothed, firm, filamentous. Culms and rhizomes without fibrillose scales. Leaves not glaucous, lower bracts leafy and upper ones reduced. Pistillate spikes light to dark green, dull, with many elevated nerves. Terminal spike staminate, occasionally with one-two perigynia, upper 2-3 spikes staminate, lower 2-3 spikes pistillate. Functional Relationships:
Human Relationships:
Wildlife and Livestock Information:
Coefficient of Conservatism (C-value) [?] :
Post a Comment or Question About this Plant
Note: All submissions are moderated and only some are posted. Posted comments may be edited for length.
An email address will not be posted, but it is required for communication with the site moderator.
Comments focused outside of Illinois and neighboring states may be posted, but more attention will be given to Illinois centered information.
Thanks for your interest.
|