Missouri Department of Conservation
Missouri Department of Conservation

Taxonomy

Common Name: TRIANGULAR SEDGE

Phylum: MAGNOLIOPHYTA

Class: LILIOPSIDA

Order: CYPERALES

Family: CYPERACEAE

Genus: CAREX

Species: TRIANGULARIS

Taxonomic Authority: BOECK.

Taxonomy References: 002 , 003

Status

STATE RANK S2
GLOBAL RANK G5

Status References: 001

Habitat Summary

"Primarily associated with swamps and openings of bottomland forests, sometimes as emergent aquatics *02*; also in wet depressions or marshy areas along roadsides *02,03*."

Primary Habitat: "Wetland - swamp"

References: 002 , 003

Distribution

General Occurrence in State:

"Uncommon in southeastern Missouri, mostly in the Mississippi lowlands division with a single disjunct locality in Camden county *02*."

County Occurance

County Occurence
Known Likely Unknown Not Likely Historic Extirpated
BOONE CALLAWAY
BUTLER DUNKLIN
CAMDEN FRANKLIN
LACLEDE JACKSON
NEW MADRID ST. FRANCOIS
SCOTT
STODDARD
WAYNE

References for distribution: 002 , 003 , 004

Distribution by Watersheds

St. John's Ditch and Blue Ditch
St. Francis R. from Wappapello Dam to Arkansas Border
Little R.
Gasconade R. from Headwaters to Big Piney R.
Black R.

Comments: "Historical records: 10290109 (Osage River from Warsaw to Bagnell Dam) *03*, 10300200 (Missouri River from Gasconade R. To Mississippi River), 10300101 (Missouri River from Kansas City to Little Chariton R.), 08020202 (St. Francis r. From headwaters to wappapello dam) *04*."

Distribution by Ecoregions

Comments: ""

Distribution by Potential Natural Vegetation

Oak-Hickory Forest
Oak-Hickory-Pine Forest

Distribution by Natural Divisions of Missouri

Ozark: Upper Ozark
Ozark: Lower Ozark
Mississippi Lowlands: Crowley's Ridge
Mississippi Lowlands: Lowlands

Habitat Associations

Species is associated with "Terrestrial/Aquatic" habitats.

National Wetlands Inventory Association:

Palustrine

Aquatic Associations:

"Palustrine", "Emergent",
"Palustrine", "Emergent",

References for Aquatic Associations: 002 , 003

Habitat Types:

Swamp

References for Habitat Types: 002

Terrestrial Natural Communities:

Forest
Wet Bottomland Forest
Swamps
Swamp

References for Terrestrial Natural Communities: 002 , 003

Food Habits

Trophic Level:

""

Larval Food Habits

Comments for larval food habits:
""

References for larval food habits:

Juvenile Food Habits

Comments for Juvenile Food Habits:
""

References Juvenile Food Habits

Adult Food Habits

Comments for Adult Food Habits:
""

References Adult Food Habits

Niche Requirements

Egg Niche Requirements

References for egg niches requirements:

Feeding Larvae Niche Requirements

References for feeding larvae niche requirements:

Resting Larvae Niche Requirements

References for resting Larvae niche requirements:

Feeding Juvenile Niche Requirements

References for feeding juvenile niche requirements:

Resting Juvenile Niche Requirements

References for resting juvenile niche requirements:

Breeding Adult Niche Requirements

References for feeding Adult niche requirements:

Feeding Adult Niche Requirements

References for feeding adult niche requirements:

Resting Adult Niche Requirements

References for resting adult niche requirements:

Niche Requirement Summary

General habitat association specified in comments(00270)

Comments about Life History:

Code Comment
050 Records indicate fruiting plants for May *003*.
043 The sheaths of previous season's basal leaves persisting and noticeable *002*.

Life History Information

Reproduction (plants):plants monoecious
Winter persistence of above-ground stem:see comments(043)
Duration of plant:perennial
Life form:herb
Flowering period begins: May
Flowering period ends: June
Fruiting period begins: see comments(050)
Origin in state: native

Comments about Life History:

Code Comment
050 Records indicate fruiting plants for May *003*.
043 The sheaths of previous season's basal leaves persisting and noticeable *002*.

References for life history: 002 , 003

Management

Beneficial Management Practices:

Beneficial Management References:

Adverse Managment Practices:

Adverse Management References:

Comments on Management:

References for Management Comments:

References

Reference Code Citation
001 Missouri Natural Heritage Program. 2004. Missouri Species and Communities of Conservation Concern Checklist. Missouri Department Of Conservation. Jefferson City, Missouri. 47 Pp.
002 Yatskievych, G. 1999. Steyermark's Flora Of Missouri. Vol.1 Jefferson City, Missouri. Department Of Conservation. 991 Pp.
003 Unpb Flora Of Missouri Database. G. Yatskievych, Missouri Botanical Garden, P.O. Box 299, St. Louis, Mo. 63166-0299. 314-577-9522.
004 Unpb Missouri Department Of Conservation Heritage Database. P.O. Box 180, Jefferson City, Missouri 65102. 573-751-4115.