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Carex microdonta Torr. & Hook.
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Carex microdonta Torr. & Hook.
littletooth sedge

General Information
Symbol: CAMI5
Group: Monocot
Family: Cyperaceae
Duration: Perennial
Growth Habit : Graminoid
Native Status : L48   N
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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 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 microdonta Torr. & Hook. – littletooth 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.
Florida little-tooth sedge Endangered

Wetland Status

Interpreting Wetland Status

North America
Arid West FAC
Atlantic and Gulf Coastal Plain FACW
Eastern Mountains and Piedmont FACW
Great Plains OBL
Midwest FAC

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Lady Bird Johnson Wildflower Center Native Plant Information Network (CAMI5)
USF Atlas of Florida Vascular Plants (CAMI5)



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 437, 441, 442 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 23 | Cyperaceae | Carex

276. Carex microdonta Torrey & Hooker, Ann. Lyceum Nat. Hist. New York. 3: 423. 1836 (as microdontus).

Rhizomes long-creeping. Culms solitary (rarely 2—3 together), 10—56 cm. Leaves light green, cauline blades 5—36 cm × 2.1—5.9(—8.3) mm, widest leaves 2.8—8.3 mm wide. Inflorescences: peduncle of terminal spike 0.1—9.6 cm (2.6—9.6 cm if staminate spike 1); ligule of proximal bract 1.6—7.4(—9.4) mm; bracts shorter than to overtopping culms, longest bract blade (per plant) of distal lateral spike 6.2—18 cm. Proximal spikes sometimes staminate at apex, usually arising from proximal 1/2 of culms, (9—)13—37 × 4.8—7.8 mm. Terminal spike often with 1—3 much smaller staminate spikes near its base, 18—45 mm, separated from distal lateral spike (unless staminate). Pistillate scales triangular, elliptic, or ovate, 1.6—3.6 × 0.8—1.7 mm. Staminate scales with apex acute to awned. Anthers 2.4 4.6 mm. Perigynia olive green, ovoid to oblong-ovoid, 2.8 4.2 × 1.4—1.8 mm, 1.9—2.5 times as long as thick; beak 0.3 0.9 mm, bidentulate, teeth 0.1 0.3 mm. Achenes 1.9—2.7 × 1.2—1.6 mm. 2n = 64.

Fruiting spring—mid summer (Apr—Jul, Jun—Aug in Trans-Pecos, Texas). Open, dry to moist, calcareous substrates, usually in rocky or wet prairies, swales, seeps, and ditches, characteristic of relic patches of blackland prairies, limestone glades, and chalk openings; 20—1800 m; Ala., Ariz., Ark., Fla., Kans., La., Miss., Mo., N.Mex., Okla., Tex.

Carex microdonta occurs chiefly in the deep South and on the central and southern Great Plains. Plants are usually larger than those of C. crawei and more vigorously colonial, producing larger vegetative shoots that are more numerous in proportion to fertile ones. Whether or not the two taxa are ecologically distinct is a matter awaiting study.

Updated: 2019-09-16 02:26:39 gmt
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