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Carex austrina (Small) Mack.
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Carex austrina (Small) Mack.
southern sedge

Image of Carex austrina

General Information
Symbol: CAAU6
Group: Monocot
Family: Cyperaceae
Duration: Perennial
Growth Habit : Graminoid
Native Status : L48   N
Data Source and Documentation
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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

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: 366. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .



Symbol Scientific Name
CAMUA Carex muehlenbergii Schkuhr ex Willd. var. australis Olney ex L.H. Bailey
CAMUA4 Carex muehlenbergii Schkuhr ex Willd. var. austrina Small


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 austrina (Small) Mack. – southern sedge

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain FACU
Eastern Mountains and Piedmont FACU
Great Plains FACU
Midwest FACU
Northcentral & Northeast FACU

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Flora of North America (CAAU6)
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Integrated Taxonomic Information System (CAMUA)
Integrated Taxonomic Information System (CAMUA4)



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 287, 288, 293, 294 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 23 | Cyperaceae | Carex

36. Carex austrina Mackenzie, Bull. Torrey Bot. Club. 34: 151. 1907.

Carex muehlenbergii Schkuhr ex Willdenow var. australis Olney ex L. H. Bailey, Proc. Amer. Acad. Arts 22: 141. 1886

Plants without conspicuous rhizomes. Culms 20—90 cm, 1.5—3 mm wide basally, 0.9—1.1 mm wide distally. Leaves: sheaths tight, green, fronts hyaline, yellowish and thickened at mouth; ligules to 3 mm, as long as wide; widest leaf blades 2.5—4.5 mm wide, sometimes papillose adaxially. Inflorescences with (3—)5—10 spikes, 1.5—3.5 cm × 8—15 mm; proximal internodes equaling or shorter than proximal spikes; proximal bracts 1—5 cm; spikes with 8—20 ascending or spreading perigynia. Pistillate scales hyaline or brown with green, 3-veined center, ovate, (2.4—)3—4.3 × (1—)1.6—3 mm, body slightly shorter to longer than perigynium and as wide, apex awned to 1.5—3.5(—4) mm. Anthers 2.2—2.5 mm. Perigynia pale green, pale yellow, or pale brown, 9—15-veined abaxially, 3.5—5 × 2.2—3 mm, margins serrulate distally; beak 0.8—1.2 mm, apical teeth 0.4—0.6 mm. Achenes suborbiculate, 1.9—2.5 × 1.5—2 mm.

Fruiting late spring—early summer. Dry prairies, forests, roadside ditches, often in calcareous soils; 100—500 m; Ala., Ark., Iowa, Kans., Ky., La., Miss., Mo., Nebr., Okla., Tenn., Tex.

Updated: 2019-09-16 10:37:45 gmt
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